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115-494: The choir is known for presenting concerts of great variety and style and has recently performed choral works by Vivaldi ( Gloria RV 588 and Gloria RV 589 ), Vaughan Williams ( Fantasia on Christmas Carols , Five Folk English Songs, Five Mystical Songs), Haydn (Insanae et vanae curae, Paukenmesse , Te Deum), Beethoven ( Mass in C major ), and Handel ( Coronation Anthems ). Morley College Choir has also worked in partnership with other orchestral and choral ensembles including

230-532: A pamphlet denouncing Vivaldi and his operas. The pamphlet, Il teatro alla moda , attacks the composer even though it does not mention him directly. The cover drawing shows a boat (the San Angelo), on the left end of which stands a little angel wearing a priest's hat and playing the violin. The Marcello family claimed ownership of the Teatro San Angelo, and a long legal battle had been fought with

345-827: A baroque church in an area that is now part of the site of the TU Wien university. The cemetery existed until 1807. The house where he lived in Vienna has since been destroyed; the Hotel Sacher is built on part of the site. Memorial plaques have been placed at both locations, as well as a Vivaldi "star" in the Viennese Musikmeile and a monument at the Rooseveltplatz. Only two, possibly three, original portraits of Vivaldi are known to survive: an engraving, an ink sketch and an oil painting. The engraving, which

460-542: A bridge to the scholarly catalog dominant today. Compositions by Vivaldi are identified today by RV number , the number assigned by Danish musicologist Peter Ryom in works published mostly in the 1970s, such as the "Ryom-Verzeichnis" or "Répertoire des oeuvres d'Antonio Vivaldi". Like the Complete Edition before it, the RV does not typically assign its single, consecutive numbers to "adjacent" works that occupy one of

575-755: A catalog created in the 20th century by the musicologist Peter Ryom . Le quattro stagioni (The Four Seasons) of 1723 is his most famous work. The first four of the 12 concertos, titled Il cimento dell'armonia e dell'inventione ("The Contest between Harmony and Invention"), they depict moods and scenes from each of the four seasons. This work has been described as an outstanding example of pre-19th-century program music . Vivaldi's other notable sets of 12 violin concertos include La stravaganza  (The Eccentricity), L'estro armonico  (The Harmonic Inspiration) and La cetra  (The Lyre). Vivaldi wrote more than 500 concertos. About 350 of these are for solo instrument and strings, of which 230 are for violin;

690-453: A composer, he was regarded as an exceptional technical violinist as well. The German architect Johann Friedrich Armand von Uffenbach referred to Vivaldi as "the famous composer and violinist" and noted in his diary that "Vivaldi played a solo accompaniment excellently, and at the conclusion he added a free fantasy [an improvised cadenza] which absolutely astounded me, for it is hardly possible that anyone has ever played, or ever will play, in such

805-571: A depth of less than 70 km (43 mi) are classified as "shallow-focus" earthquakes, while those with a focal depth between 70 and 300 km (43 and 186 mi) are commonly termed "mid-focus" or "intermediate-depth" earthquakes. In subduction zones, where older and colder oceanic crust descends beneath another tectonic plate, deep-focus earthquakes may occur at much greater depths (ranging from 300 to 700 km (190 to 430 mi)). These seismically active areas of subduction are known as Wadati–Benioff zones . Deep-focus earthquakes occur at

920-488: A depth where the subducted lithosphere should no longer be brittle, due to the high temperature and pressure. A possible mechanism for the generation of deep-focus earthquakes is faulting caused by olivine undergoing a phase transition into a spinel structure. Earthquakes often occur in volcanic regions and are caused there, both by tectonic faults and the movement of magma in volcanoes . Such earthquakes can serve as an early warning of volcanic eruptions, as during

1035-485: A different work already given the previous year. In 1715, he presented Nerone fatto Cesare (RV 724, now lost), with music by seven different composers, of which he was the leader. The opera contained eleven arias and was a success. In the late season, Vivaldi planned to put on an opera entirely of his own creation, Arsilda, regina di Ponto (RV 700), but the state censor blocked the performance. The main character, Arsilda, falls in love with another woman, Lisea, who

1150-638: A fashion." In September 1703, Vivaldi (24) became maestro di violino (master of violin) at an orphanage called the Pio Ospedale della Pietà (Devout Hospital of Mercy) in Venice; although his talents as a violinist probably secured him the job, he soon became a successful teacher of music there. Over the next thirty years he composed most of his major works while working at the Ospedale. There were four similar institutions in Venice; their purpose

1265-475: A few exceptions to this: Supershear earthquake ruptures are known to have propagated at speeds greater than the S wave velocity. These have so far all been observed during large strike-slip events. The unusually wide zone of damage caused by the 2001 Kunlun earthquake has been attributed to the effects of the sonic boom developed in such earthquakes. Slow earthquake ruptures travel at unusually low velocities. A particularly dangerous form of slow earthquake

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1380-579: A major composer. Scholarly work intended to increase the accuracy and variety of Vivaldi performances also supported new discoveries that made old catalogs incomplete. Works still in circulation today might be numbered under several different systems (some earlier catalogs are mentioned here ). Because the simply consecutive Complete Edition (CE) numbers did not reflect the individual works (Opus numbers) into which compositions were grouped, numbers assigned by Antonio Fanna were often used in conjunction with CE numbers. Combined Complete Edition (CE)/Fanna numbering

1495-623: A much lesser-known, slightly more detailed copy recently discovered in Moscow. The oil painting, which can be seen in the International Museum and Library of Music of Bologna , is by an anonymous artist and is thought to depict Vivaldi due to its strong resemblance to the La Cave engraving. During his lifetime, Vivaldi was popular in many countries throughout Europe, including France, but after his death his popularity dwindled. After

1610-458: A particular location in the Earth is the average rate of seismic energy release per unit volume. In its most general sense, the word earthquake is used to describe any seismic event that generates seismic waves. Earthquakes can occur naturally or be induced by human activities, such as mining , fracking , and nuclear tests . The initial point of rupture is called the hypocenter or focus, while

1725-560: A particular location in the Earth is the average rate of seismic energy release per unit volume. One of the most devastating earthquakes in recorded history was the 1556 Shaanxi earthquake , which occurred on 23 January 1556 in Shaanxi , China. More than 830,000 people died. Most houses in the area were yaodongs —dwellings carved out of loess hillsides—and many victims were killed when these structures collapsed. The 1976 Tangshan earthquake , which killed between 240,000 and 655,000 people,

1840-464: A production running for an extended period of time in any major opera house. In 1717 or 1718, Vivaldi was offered a prestigious new position as Maestro di Cappella of the court of Prince Philip of Hesse-Darmstadt , governor of Mantua , in the northwest of Italy He moved there for three years and produced several operas, among them Tito Manlio (RV 738). In 1721, he was in Milan, where he presented

1955-572: A renewed interest in Vivaldi by, among others, Mario Rinaldi, Alfredo Casella , Ezra Pound , Olga Rudge , Desmond Chute , Arturo Toscanini , Arnold Schering and Louis Kaufman , all of whom were instrumental in the revival of Vivaldi throughout the 20th century. In 1926, in a monastery in Piedmont , researchers discovered fourteen bound volumes of Vivaldi's work (later discovered to be fifteen) that were previously thought to have been lost during

2070-590: A sideline: his first opera, Ottone in villa (RV 729) was performed not in Venice, but at the Garzerie Theater in Vicenza in 1713. The following year, Vivaldi became the impresario of the Teatro San Angelo in Venice, where his opera Orlando finto pazzo (RV 727) was performed. The work was not to the public's taste, and it closed after a couple of weeks, being replaced with a repeat of

2185-765: A single rupture) are approximately 1,000 km (620 mi). Examples are the earthquakes in Alaska (1957) , Chile (1960) , and Sumatra (2004) , all in subduction zones. The longest earthquake ruptures on strike-slip faults, like the San Andreas Fault ( 1857 , 1906 ), the North Anatolian Fault in Turkey ( 1939 ), and the Denali Fault in Alaska ( 2002 ), are about half to one third as long as

2300-436: A steady source of income. Soon afterwards, Vivaldi became impoverished and, during the night of 27/28 July 1741, aged 63, he died of "internal infection ", in a house owned by the widow of a Viennese saddlemaker. On 28 July, Vivaldi's funeral took place at St. Stephen's Cathedral . Contrary to popular legend, the young Joseph Haydn who was in the cathedral choir at the time had nothing to do with his burial, since no music

2415-445: A year as a freelance musician, he was recalled by the Ospedale with a unanimous vote; clearly during his year's absence the board had realized the importance of his role. He became responsible for all of the musical activity of the institution when he was promoted to maestro de' concerti (music director) in 1716 and responsible for composing two new concertos every month. In 1705, the first collection ( Connor Cassara ) of his works

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2530-525: Is a theory that earthquakes can recur in a regular pattern. Earthquake clustering has been observed, for example, in Parkfield, California where a long-term research study is being conducted around the Parkfield earthquake cluster. An aftershock is an earthquake that occurs after a previous earthquake, the mainshock. Rapid changes of stress between rocks, and the stress from the original earthquake are

2645-701: Is associated with a sonnet , possibly by Vivaldi, describing the scenes depicted in the music. They were published as the first four concertos in a collection of twelve, Il cimento dell'armonia e dell'inventione , Opus 8, published in Amsterdam by Michel-Charles Le Cène in 1725. During his time in Mantua, Vivaldi became acquainted with an aspiring young singer Anna Tessieri Girò , who would become his student, protégée, and favorite prima donna . Anna, along with her older half-sister Paolina, moved in with Vivaldi and regularly accompanied him on his many travels. There

2760-524: Is converted into heat generated by friction. Therefore, earthquakes lower the Earth's available elastic potential energy and raise its temperature, though these changes are negligible compared to the conductive and convective flow of heat out from the Earth's deep interior. There are three main types of fault, all of which may cause an interplate earthquake : normal, reverse (thrust), and strike-slip. Normal and reverse faulting are examples of dip-slip, where

2875-400: Is divided into 754 Flinn–Engdahl regions (F-E regions), which are based on political and geographical boundaries as well as seismic activity. More active zones are divided into smaller F-E regions whereas less active zones belong to larger F-E regions. Standard reporting of earthquakes includes its magnitude , date and time of occurrence, geographic coordinates of its epicenter , depth of

2990-654: Is influenced by tectonic movements along faults, including normal, reverse (thrust), and strike-slip faults, with energy release and rupture dynamics governed by the elastic-rebound theory . Efforts to manage earthquake risks involve prediction, forecasting, and preparedness, including seismic retrofitting and earthquake engineering to design structures that withstand shaking. The cultural impact of earthquakes spans myths, religious beliefs, and modern media, reflecting their profound influence on human societies. Similar seismic phenomena, known as marsquakes and moonquakes , have been observed on other celestial bodies, indicating

3105-471: Is plausible that, in his dual role of composer and impresario , he might have either written or been responsible for the production of as many as 94 operas—given that his career had by then spanned almost 25 years. Although Vivaldi certainly composed many operas in his time, he never attained the prominence of other great composers such as Alessandro Scarlatti , Johann Adolph Hasse , Leonardo Leo , and Baldassare Galuppi , as evidenced by his inability to keep

3220-560: Is pretending to be a man. Vivaldi got the censor to accept the opera the following year, and it was a resounding success. During this period, the Pietà commissioned several liturgical works. The most important were two oratorios . Moyses Deus Pharaonis , (RV 643) is now lost. The second, Juditha triumphans (RV 644), celebrates the victory of the Republic of Venice against the Turks and

3335-545: Is probably a statistical fluctuation rather than a systematic trend. More detailed statistics on the size and frequency of earthquakes is available from the United States Geological Survey. A recent increase in the number of major earthquakes has been noted, which could be explained by a cyclical pattern of periods of intense tectonic activity, interspersed with longer periods of low intensity. However, accurate recordings of earthquakes only began in

3450-423: Is proportional to the area of the fault that ruptures and the stress drop. Therefore, the longer the length and the wider the width of the faulted area, the larger the resulting magnitude. The most important parameter controlling the maximum earthquake magnitude on a fault, however, is not the maximum available length, but the available width because the latter varies by a factor of 20. Along converging plate margins,

3565-410: Is the tsunami earthquake , observed where the relatively low felt intensities, caused by the slow propagation speed of some great earthquakes, fail to alert the population of the neighboring coast, as in the 1896 Sanriku earthquake . During an earthquake, high temperatures can develop at the fault plane, increasing pore pressure and consequently vaporization of the groundwater already contained within

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3680-606: The Ospedale della Pietà , a home for abandoned children. Vivaldi began studying for the priesthood at the age of 15 and was ordained at 25, but was given dispensation to no longer say public Masses due to a health problem. Vivaldi also had some success with expensive stagings of his operas in Venice , Mantua and Vienna . After meeting the Emperor Charles VI , Vivaldi moved to Vienna, hoping for royal support. However,

3795-458: The 1960 Valdivia earthquake in Chile, the largest ever recorded at 9.5 magnitude. Earthquakes result in various effects, such as ground shaking and soil liquefaction , leading to significant damage and loss of life. When the epicenter of a large earthquake is located offshore, the seabed may be displaced sufficiently to cause a tsunami . Earthquakes can trigger landslides . Earthquakes' occurrence

3910-400: The 1980 eruption of Mount St. Helens . Earthquake swarms can serve as markers for the location of the flowing magma throughout the volcanoes. These swarms can be recorded by seismometers and tiltmeters (a device that measures ground slope) and used as sensors to predict imminent or upcoming eruptions. A tectonic earthquake begins as an area of initial slip on the fault surface that forms

4025-587: The 2004 Indian Ocean earthquake is simultaneously one of the deadliest earthquakes in history. Earthquakes that caused the greatest loss of life, while powerful, were deadly because of their proximity to either heavily populated areas or the ocean, where earthquakes often create tsunamis that can devastate communities thousands of kilometers away. Regions most at risk for great loss of life include those where earthquakes are relatively rare but powerful, and poor regions with lax, unenforced, or nonexistent seismic building codes. Tectonic earthquakes occur anywhere on

4140-585: The BBC Concert Orchestra , the Camerata of London , and Chantage . The choir was conducted by Jeremy Haneman from 2005 until 2010 and from 2012 by Simon Pettite. This article about a classical ensemble is a stub . You can help Misplaced Pages by expanding it . This article on an English band or musical ensemble is a stub . You can help Misplaced Pages by expanding it . Vivaldi Antonio Lucio Vivaldi (4 March 1678 – 28 July 1741)

4255-499: The Himalayan Mountains . With the rapid growth of mega-cities such as Mexico City, Tokyo, and Tehran in areas of high seismic risk , some seismologists are warning that a single earthquake may claim the lives of up to three million people. While most earthquakes are caused by the movement of the Earth's tectonic plates , human activity can also produce earthquakes. Activities both above ground and below may change

4370-577: The Napoleonic Wars . Some missing tomes in the numbered set were discovered in the collections of the descendants of the Grand Duke Durazzo, who had acquired the monastery complex in the 18th century. The volumes contained 300 concertos, 19 operas and over 100 vocal-instrumental works. The resurrection of Vivaldi's unpublished works in the 20th century greatly benefited from the noted efforts of Alfredo Casella , who in 1939 organized

4485-488: The Stabat Mater ( RV 621 ) was played as part of a religious festival. The work seems to have been written in haste: the string parts are simple, the music of the first three movements is repeated in the next three, and not all the text is set. Nevertheless, perhaps in part because of the forced essentiality of the music, the work is considered to be one of his early masterpieces. Despite his frequent travels from 1718,

4600-426: The brittle-ductile transition zone and upwards by the ground surface. The mechanics of this process are poorly understood because it is difficult either to recreate such rapid movements in a laboratory or to record seismic waves close to a nucleation zone due to strong ground motion. In most cases, the rupture speed approaches, but does not exceed, the shear wave (S wave) velocity of the surrounding rock. There are

4715-413: The least principal stress. Strike-slip faulting is intermediate between the other two types described above. This difference in stress regime in the three faulting environments can contribute to differences in stress drop during faulting, which contributes to differences in the radiated energy, regardless of fault dimensions. For every unit increase in magnitude, there is a roughly thirty-fold increase in

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4830-406: The lithosphere that creates seismic waves . Earthquakes can range in intensity , from those so weak they cannot be felt, to those violent enough to propel objects and people into the air, damage critical infrastructure, and wreak destruction across entire cities. The seismic activity of an area is the frequency, type, and size of earthquakes experienced over a particular time. The seismicity at

4945-553: The 20th century and has been inferred for older anomalous clusters of large earthquakes in the Middle East. It is estimated that around 500,000 earthquakes occur each year, detectable with current instrumentation. About 100,000 of these can be felt. Minor earthquakes occur very frequently around the world in places like California and Alaska in the U.S., as well as in El Salvador, Mexico, Guatemala, Chile, Peru, Indonesia,

5060-433: The 21st century. Seismic waves travel through the Earth's interior and can be recorded by seismometers at great distances. The surface-wave magnitude was developed in the 1950s as a means to measure remote earthquakes and to improve the accuracy for larger events. The moment magnitude scale not only measures the amplitude of the shock but also takes into account the seismic moment (total rupture area, average slip of

5175-460: The Australian scholar Janice Stockigt. The Vivaldi scholar Michael Talbot described RV 807 as "arguably the best nonoperatic work from Vivaldi's pen to come to light since ... the 1920s". Earthquake An earthquake  – also called a quake , tremor , or temblor  – is the shaking of the Earth 's surface resulting from a sudden release of energy in

5290-399: The Earth's core was located in 1913 by Beno Gutenberg . S waves and later arriving surface waves do most of the damage compared to P waves. P waves squeeze and expand the material in the same direction they are traveling, whereas S waves shake the ground up and down and back and forth. Earthquakes are not only categorized by their magnitude but also by the place where they occur. The world

5405-484: The Earth. Also, the depth of the hypocenter can be computed roughly. P wave speed S waves speed As a consequence, the first waves of a distant earthquake arrive at an observatory via the Earth's mantle. On average, the kilometer distance to the earthquake is the number of seconds between the P- and S wave times 8. Slight deviations are caused by inhomogeneities of subsurface structure. By such analysis of seismograms,

5520-467: The Emperor died soon after Vivaldi's arrival, and Vivaldi himself died in poverty less than a year later. After almost two centuries of decline, Vivaldi's musical reputation underwent a revival in the early 20th century, with much scholarly research devoted to his work. Many of Vivaldi's compositions, once thought lost, have been rediscovered – some as recently as 2015. His music remains widely popular in

5635-467: The Ospedale paid him 2 sequins to write two concerti a month for the orchestra and to rehearse with them at least five times when in Venice. The orphanage's records show that he was paid for 140 concerti between 1723 and 1733. In early 18th-century Venice, opera was the most popular musical entertainment. It proved most profitable for Vivaldi. There were several theaters competing for the public's attention. Vivaldi started his career as an opera composer as

5750-573: The Philippines, Iran, Pakistan, the Azores in Portugal, Turkey, New Zealand, Greece, Italy, India, Nepal, and Japan. Larger earthquakes occur less frequently, the relationship being exponential ; for example, roughly ten times as many earthquakes larger than magnitude 4 occur than earthquakes larger than magnitude 5. In the (low seismicity) United Kingdom, for example, it has been calculated that

5865-656: The Style of Vivaldi (which he passed off as an original Vivaldi work) helped revive Vivaldi's reputation. Kreisler's concerto in C spurred the French scholar Marc Pincherle to begin an academic study of Vivaldi's oeuvre. Many Vivaldi manuscripts were rediscovered, and were acquired by the Turin National University Library as a result of the generous sponsorship of Turinese businessmen Roberto Foa and Filippo Giordano, in memory of their sons. This led to

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5980-406: The age of thirteen, Vivaldi wrote an early liturgical work – Laetatus sum ( RV Anh 31). In 1693, at the age of fifteen, he began studying to become a priest . He was ordained in 1703, aged 25, and was soon nicknamed il Prete Rosso , "The Red Priest"; Rosso is Italian for "red" and would have referred to the color of his hair, a family trait. Although Vivaldi is most famous as

6095-463: The average recurrences are: an earthquake of 3.7–4.6 every year, an earthquake of 4.7–5.5 every 10 years, and an earthquake of 5.6 or larger every 100 years. This is an example of the Gutenberg–Richter law . The number of seismic stations has increased from about 350 in 1931 to many thousands today. As a result, many more earthquakes are reported than in the past, but this is because of

6210-605: The ballets found within those works. At the height of his career, he received commissions from European nobility and royalty, some of which were: Like many composers of the time, Vivaldi faced financial difficulties in his later years. His compositions were no longer held in such high esteem as they had once been in Venice; changing musical tastes quickly made them outmoded. In response, Vivaldi chose to sell off sizeable numbers of his manuscripts at paltry prices to finance his migration to Vienna . The reasons for Vivaldi's departure from Venice are unclear, but it seems likely that, after

6325-404: The brittle crust. Thus, earthquakes with magnitudes much larger than 8 are not possible. In addition, there exists a hierarchy of stress levels in the three fault types. Thrust faults are generated by the highest, strike-slip by intermediate, and normal faults by the lowest stress levels. This can easily be understood by considering the direction of the greatest principal stress, the direction of

6440-566: The cause of other earthquakes in the past century. A Columbia University paper suggested that the 8.0 magnitude 2008 Sichuan earthquake was induced by loading from the Zipingpu Dam , though the link has not been conclusively proved. The instrumental scales used to describe the size of an earthquake began with the Richter scale in the 1930s. It is a relatively simple measurement of an event's amplitude, and its use has become minimal in

6555-532: The composer's single opus numbers. Its goal as a modern catalog is to index the manuscripts and sources that establish the existence and nature of all known works. The German scholar Walter Kolneder has discerned the influence of Legrenzi's style in Vivaldi's early liturgical work Laetatus sum ( RV Anh 31), written in 1691 at the age of thirteen. Vivaldi was also influenced by the Composer Arcangelo Corelli . Johann Sebastian Bach

6670-529: The dip angle of the rupture plane is very shallow, typically about 10 degrees. Thus, the width of the plane within the top brittle crust of the Earth can reach 50–100 km (31–62 mi) (such as in Japan, 2011 , or in Alaska, 1964 ), making the most powerful earthquakes possible. The majority of tectonic earthquakes originate in the Ring of Fire at depths not exceeding tens of kilometers. Earthquakes occurring at

6785-678: The displacement along the fault is in the direction of dip and where movement on them involves a vertical component. Many earthquakes are caused by movement on faults that have components of both dip-slip and strike-slip; this is known as oblique slip. The topmost, brittle part of the Earth's crust, and the cool slabs of the tectonic plates that are descending into the hot mantle, are the only parts of our planet that can store elastic energy and release it in fault ruptures. Rocks hotter than about 300 °C (572 °F) flow in response to stress; they do not rupture in earthquakes. The maximum observed lengths of ruptures and mapped faults (which may break in

6900-439: The distance from the earthquake and the underlying rock or soil makeup. The first scale for measuring earthquake magnitudes was developed by Charles Francis Richter in 1935. Subsequent scales ( seismic magnitude scales ) have retained a key feature, where each unit represents a ten-fold difference in the amplitude of the ground shaking and a 32-fold difference in energy. Subsequent scales are also adjusted to have approximately

7015-554: The early 1900s, so it is too early to categorically state that this is the case. Most of the world's earthquakes (90%, and 81% of the largest) take place in the 40,000-kilometre-long (25,000 mi), horseshoe-shaped zone called the circum-Pacific seismic belt, known as the Pacific Ring of Fire , which for the most part bounds the Pacific plate . Massive earthquakes tend to occur along other plate boundaries too, such as along

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7130-403: The earth where there is sufficient stored elastic strain energy to drive fracture propagation along a fault plane . The sides of a fault move past each other smoothly and aseismically only if there are no irregularities or asperities along the fault surface that increases the frictional resistance. Most fault surfaces do have such asperities, which leads to a form of stick-slip behavior . Once

7245-426: The earthquakes strike a fault in clusters, each triggered by the shaking or stress redistribution of the previous earthquakes. Similar to aftershocks but on adjacent segments of fault, these storms occur over the course of years, with some of the later earthquakes as damaging as the early ones. Such a pattern was observed in the sequence of about a dozen earthquakes that struck the North Anatolian Fault in Turkey in

7360-407: The emerging concerto form into a widely accepted and followed idiom. Vivaldi composed many instrumental concertos , for the violin and a variety of other musical instruments , as well as sacred choral works and more than fifty operas . His best-known work is a series of violin concertos known as The Four Seasons . Many of his compositions were written for the all-female music ensemble of

7475-562: The end of the Baroque period, Vivaldi's published concerti became relatively unknown, and were largely ignored. Even his most famous work, The Four Seasons , was unknown in its original edition during the Classical and Romantic periods. Vivaldi's work was rediscovered in the 20th century. A composition by Vivaldi is identified by RV number , which refers to its place in the "Ryom-Verzeichnis" or "Répertoire des oeuvres d'Antonio Vivaldi",

7590-504: The energy released. For instance, an earthquake of magnitude 6.0 releases approximately 32 times more energy than a 5.0 magnitude earthquake and a 7.0 magnitude earthquake releases 1,000 times more energy than a 5.0 magnitude earthquake. An 8.6-magnitude earthquake releases the same amount of energy as 10,000 atomic bombs of the size used in World War II . This is so because the energy released in an earthquake, and thus its magnitude,

7705-458: The fact that no single earthquake in the sequence is the main shock, so none has a notably higher magnitude than another. An example of an earthquake swarm is the 2004 activity at Yellowstone National Park . In August 2012, a swarm of earthquakes shook Southern California 's Imperial Valley , showing the most recorded activity in the area since the 1970s. Sometimes a series of earthquakes occur in what has been called an earthquake storm , where

7820-462: The fault has locked, continued relative motion between the plates leads to increasing stress and, therefore, stored strain energy in the volume around the fault surface. This continues until the stress has risen sufficiently to break through the asperity, suddenly allowing sliding over the locked portion of the fault, releasing the stored energy . This energy is released as a combination of radiated elastic strain seismic waves , frictional heating of

7935-411: The fault plane that holds it in place, and fluids can exert a lubricating effect. As thermal overpressurization may provide positive feedback between slip and strength fall at the fault plane, a common opinion is that it may enhance the faulting process instability. After the mainshock, the pressure gradient between the fault plane and the neighboring rock causes a fluid flow that increases pore pressure in

8050-418: The fault surface, and cracking of the rock, thus causing an earthquake. This process of gradual build-up of strain and stress punctuated by occasional sudden earthquake failure is referred to as the elastic-rebound theory . It is estimated that only 10 percent or less of an earthquake's total energy is radiated as seismic energy. Most of the earthquake's energy is used to power the earthquake fracture growth or

8165-541: The fault, and rigidity of the rock). The Japan Meteorological Agency seismic intensity scale , the Medvedev–Sponheuer–Karnik scale , and the Mercalli intensity scale are based on the observed effects and are related to the intensity of shaking. The shaking of the earth is a common phenomenon that has been experienced by humans from the earliest of times. Before the development of strong-motion accelerometers,

8280-417: The focus. Once the rupture has been initiated, it begins to propagate away from the focus, spreading out along the fault surface. Lateral propagation will continue until either the rupture reaches a barrier, such as the end of a fault segment, or a region on the fault where there is insufficient stress to allow continued rupture. For larger earthquakes, the depth extent of rupture will be constrained downwards by

8395-406: The force that "pushes" the rock mass during the faulting. In the case of normal faults, the rock mass is pushed down in a vertical direction, thus the pushing force ( greatest principal stress) equals the weight of the rock mass itself. In the case of thrusting, the rock mass "escapes" in the direction of the least principal stress, namely upward, lifting the rock mass, and thus, the overburden equals

8510-517: The founders of the Sovvegno dei musicisti di Santa Cecilia , an association of musicians. He taught Antonio to play the violin and then toured Venice, playing the violin with his young son. Antonio was probably taught at an early age, judging by the extensive musical knowledge he had acquired by the age of 24, when he started working at the Ospedale della Pietà . The president of the sovvegno

8625-493: The ground level directly above it is the epicenter . Earthquakes are primarily caused by geological faults , but also by volcanic activity , landslides, and other seismic events. The frequency, type, and size of earthquakes in an area define its seismic activity, reflecting the average rate of seismic energy release. Significant historical earthquakes include the 1556 Shaanxi earthquake in China, with over 830,000 fatalities, and

8740-542: The historic Vivaldi Week, in which the rediscovered Gloria (RV 589) and l'Olimpiade were revived. Since World War II , Vivaldi's compositions have enjoyed wide success. Historically informed performances , often on "original instruments", have increased Vivaldi's fame still further. Recent rediscoveries of works by Vivaldi include two psalm settings: Psalm 127 , Nisi Dominus RV 803 (in eight movements); and Psalm 110 , Dixit Dominus RV 807 (in eleven movements). These were identified in 2003 and 2005, respectively, by

8855-410: The intensity of a seismic event was estimated based on the observed effects. Magnitude and intensity are not directly related and calculated using different methods. The magnitude of an earthquake is a single value that describes the size of the earthquake at its source. Intensity is the measure of shaking at different locations around the earthquake. Intensity values vary from place to place, depending on

8970-476: The lengths along subducting plate margins, and those along normal faults are even shorter. Normal faults occur mainly in areas where the crust is being extended such as a divergent boundary . Earthquakes associated with normal faults are generally less than magnitude 7. Maximum magnitudes along many normal faults are even more limited because many of them are located along spreading centers, as in Iceland, where

9085-402: The main causes of these aftershocks, along with the crust around the ruptured fault plane as it adjusts to the effects of the mainshock. An aftershock is in the same region as the main shock but always of a smaller magnitude, however, they can still be powerful enough to cause even more damage to buildings that were already previously damaged from the mainshock. If an aftershock is larger than

9200-414: The mainshock, the aftershock is redesignated as the mainshock and the original main shock is redesignated as a foreshock . Aftershocks are formed as the crust around the displaced fault plane adjusts to the effects of the mainshock. Earthquake swarms are sequences of earthquakes striking in a specific area within a short period. They are different from earthquakes followed by a series of aftershocks by

9315-464: The management for its restitution, without success. The obscure text under the engraving mentions non-existent places and names: for example, ALDIVIVA is an anagram of "A. Vivaldi". In a letter written by Vivaldi to his patron Marchese Bentivoglio, in 1737, he makes reference to his "94 operas". Only about 50 operas by Vivaldi have been discovered, and no other documentation of the remaining operas exists. Although Vivaldi could have been exaggerating, it

9430-498: The older Pincherle numbers as the (re-) discovery of more manuscripts had rendered older catalogs obsolete. This cataloging work was led by the Istituto Italiano Antonio Vivaldi, where Gian Francesco Malipiero was both the director and the editor of the published scores (Edizioni G. Ricordi). His work built on that of Antonio Fanna, a Venetian businessman and the institute's founder, and thus formed

9545-430: The orphans began to gain appreciation and esteem abroad, too. Vivaldi wrote concertos, cantatas and sacred vocal music for them. These sacred works, which number over 60, are varied: they included solo motets and large-scale choral works for soloists, double chorus, and orchestra. In 1704, the position of teacher of viola all'inglese was added to his duties as violin instructor. The position of maestro di coro , which

9660-809: The others are for bassoon , cello , oboe , flute , viola d'amore , recorder , lute , or mandolin . About forty concertos are for two instruments and strings, and about thirty are for three or more instruments and strings. As well as about 46 operas, Vivaldi composed a large body of sacred choral music, such as the Gloria , RV 589; Nisi Dominus , RV 608; Magnificat , RV 610 and Stabat Mater , RV 621. Gloria, RV 589 remains one of Vivaldi's more popular sacred works. Other works include sinfonias , about 90 sonatas and chamber music. Some sonatas for flute, published as Il Pastor Fido , have been erroneously attributed to Vivaldi, but were composed by Nicolas Chédeville . Vivaldi's works attracted cataloging efforts befitting

9775-400: The pastoral drama La Silvia (RV 734); nine arias from it survive. He visited Milan again the following year with the oratorio L'adorazione delli tre re magi al bambino Gesù (RV 645, now lost). In 1722 he moved to Rome, where he introduced his operas' new style. The new Pope Benedict XIII invited Vivaldi to play for him. In 1725, Vivaldi returned to Venice, where he produced four operas in

9890-526: The present day and is regularly played all over the world. Antonio Lucio Vivaldi was born on 4 March 1678 in Venice , then the capital of the Republic of Venice . He was son of Giovanni Battista Vivaldi and Camilla Calicchio, as recorded in the register of San Giovanni in Bragora . He was baptized immediately after his birth at his home by the midwife , the reason for which has led to speculation. It

10005-522: The recapture of the island of Corfu . Composed in 1716, it is one of his sacred masterpieces. All eleven singing parts were performed by girls of the orphanage, both the female and male roles. Many of the arias include parts for solo instruments—recorders, oboes, violas d'amore , and mandolins—that showcased the range of talents of the girls. Also in 1716, Vivaldi wrote and produced two more operas, L'incoronazione di Dario (RV 719) and La costanza trionfante degli amori e degli odi (RV 706). The latter

10120-530: The rock. In the coseismic phase, such an increase can significantly affect slip evolution and speed, in the post-seismic phase it can control the Aftershock sequence because, after the main event, pore pressure increase slowly propagates into the surrounding fracture network. From the point of view of the Mohr-Coulomb strength theory , an increase in fluid pressure reduces the normal stress acting on

10235-437: The rupture of geological faults but also by other events such as volcanic activity, landslides, mine blasts, fracking and nuclear tests . An earthquake's point of initial rupture is called its hypocenter or focus. The epicenter is the point at ground level directly above the hypocenter. The seismic activity of an area is the frequency, type, and size of earthquakes experienced over a particular time. The seismicity at

10350-522: The same numeric value within the limits of the scale. Although the mass media commonly reports earthquake magnitudes as "Richter magnitude" or "Richter scale", standard practice by most seismological authorities is to express an earthquake's strength on the moment magnitude scale, which is based on the actual energy released by an earthquake, the static seismic moment. Every earthquake produces different types of seismic waves, which travel through rock with different velocities: Propagation velocity of

10465-467: The same year. During this period, Vivaldi wrote the Four Seasons , four violin concertos that give musical expression to the seasons of the year. The composition is probably one of his most famous. Although three of the concerti are wholly original, the first, "Spring", borrows motifs from a Sinfonia in the first act of Vivaldi's contemporaneous opera Il Giustino . The inspiration for the concertos

10580-464: The seismic waves through solid rock ranges from approx. 3 km/s (1.9 mi/s) up to 13 km/s (8.1 mi/s), depending on the density and elasticity of the medium. In the Earth's interior, the shock- or P waves travel much faster than the S waves (approx. relation 1.7:1). The differences in travel time from the epicenter to the observatory are a measure of the distance and can be used to image both sources of earthquakes and structures within

10695-422: The stresses and strains on the crust, including building reservoirs, extracting resources such as coal or oil, and injecting fluids underground for waste disposal or fracking . Most of these earthquakes have small magnitudes. The 5.7 magnitude 2011 Oklahoma earthquake is thought to have been caused by disposing wastewater from oil production into injection wells , and studies point to the state's oil industry as

10810-549: The success of his meeting with Emperor Charles VI , he wished to take up the position of a composer in the imperial court. On his way to Vienna, Vivaldi might have stopped in Graz to see Anna Girò. Vivaldi probably moved to Vienna to stage operas, especially as he took up residence near the Kärntnertortheater . Shortly after his arrival in Vienna, Charles VI died, which left the composer without any imperial patronage or

10925-490: The surrounding fracture networks; such an increase may trigger new faulting processes by reactivating adjacent faults, giving rise to aftershocks. Analogously, artificial pore pressure increase, by fluid injection in Earth's crust, may induce seismicity . Tides may trigger some seismicity . Most earthquakes form part of a sequence, related to each other in terms of location and time. Most earthquake clusters consist of small tremors that cause little to no damage, but there

11040-443: The thickness of the brittle layer is only about six kilometres (3.7 mi). Reverse faults occur in areas where the crust is being shortened such as at a convergent boundary . Reverse faults, particularly those along convergent boundaries, are associated with the most powerful earthquakes (called megathrust earthquakes ) including almost all of those of magnitude 8 or more. Megathrust earthquakes are responsible for about 90% of

11155-461: The total seismic moment released worldwide. Strike-slip faults are steep structures where the two sides of the fault slip horizontally past each other; transform boundaries are a particular type of strike-slip fault. Strike-slip faults, particularly continental transforms , can produce major earthquakes up to about magnitude 8. Strike-slip faults tend to be oriented near vertically, resulting in an approximate width of 10 km (6.2 mi) within

11270-505: The universality of such events beyond Earth. An earthquake is the shaking of the surface of Earth resulting from a sudden release of energy in the lithosphere that creates seismic waves . Earthquakes may also be referred to as quakes , tremors , or temblors . The word tremor is also used for non-earthquake seismic rumbling . In its most general sense, an earthquake is any seismic event—whether natural or caused by humans—that generates seismic waves. Earthquakes are caused mostly by

11385-436: The vast improvement in instrumentation, rather than an increase in the number of earthquakes. The United States Geological Survey (USGS) estimates that, since 1900, there have been an average of 18 major earthquakes (magnitude 7.0–7.9) and one great earthquake (magnitude 8.0 or greater) per year, and that this average has been relatively stable. In recent years, the number of major earthquakes per year has decreased, though this

11500-487: Was Giovanni Legrenzi , an early Baroque composer and the maestro di cappella at St Mark's Basilica . It is possible that Legrenzi gave the young Antonio his first lessons in composition. Vivaldi's father may have been a composer himself: in 1689, an opera titled La Fedeltà sfortunata was composed by a Giovanni Battista Rossi—the name under which Vivaldi's father had joined the Sovvegno di Santa Cecilia. In 1691, at

11615-467: Was a musician himself, and Vivaldi probably met him in Venice. L'estro armonico was a resounding success all over Europe. It was followed in 1714 by La stravaganza (Opus 4), a collection of concerti for solo violin and strings, and dedicated to an old violin student of Vivaldi's, the Venetian noble Vettor Dolfin. In February 1711, Vivaldi and his father traveled to Brescia , where his setting of

11730-428: Was an Italian composer, virtuoso violinist and impresario of Baroque music . Along with Johann Sebastian Bach and George Frideric Handel , Vivaldi ranks amongst the greatest Baroque composers and his influence during his lifetime was widespread across Europe, giving origin to many imitators and admirers. He pioneered many developments in orchestration , violin technique and programmatic music . He consolidated

11845-443: Was at one time filled by Vivaldi, required a lot of time and work. He had to compose an oratorio or concerto for every feast and teach the orphans both music theory and how to play certain instruments. His relationship with the board of directors of the Ospedale was often strained. The board had to vote every year on whether to keep a teacher. The vote on Vivaldi was seldom unanimous and went 7 to 6 against him in 1709. In 1711, after

11960-452: Was deeply influenced by Vivaldi's concertos and arias (recalled in his St John Passion , St Matthew Passion , and cantatas ). Bach transcribed six of Vivaldi's concerti for solo keyboard, a further three for organ, and one for four harpsichords, strings, and basso continuo (BWV 1065) based upon the concerto for four violins, two violas, cello, and basso continuo ( RV 580). In the early 20th century, Fritz Kreisler 's Concerto in C, in

12075-483: Was especially common in the work of Italian groups driving the mid-20th-century revival of Vivaldi, such as Gli Accademici di Milano under Piero Santi. For example, the Bassoon Concerto in B ♭ major, "La Notte", RV 501, became CE 12, F. VIII,1 Despite the awkwardness of having to overlay Fanna numbers onto the Complete Edition number for meaningful grouping of Vivaldi's oeuvre, these numbers displaced

12190-432: Was most likely done due to his poor health. There is a false rumor that an earthquake struck the city that day. This rumor may have originated from an earthquake that struck Venice on 17 April 1688. The baptismal ceremonies which had been omitted were supplied two months later. Vivaldi had five known siblings: Bonaventura Tomaso, Margarita Gabriela, Cecilia Maria, Francesco Gaetano, and Zanetta Anna. Vivaldi's health

12305-534: Was performed on that occasion. The funeral was attended by six pall-bearers and six choir boys ( Kuttenbuben ), at a "mean" cost of 19 florins and 45 kreuzer . Only a Kleingeläut (small peal of bells), the lowest class, was provided, at a cost of 2 florins and 36 kreuzer . Vivaldi was buried in a simple grave in a burial ground that was owned by the public hospital fund – the Bürgerspital-Gottesacker cemetery, next to St Charles Church ,

12420-448: Was probably the countryside around Mantua. They were a revolution in musical conception: in them, Vivaldi represented flowing streams, singing birds (of different species, each specifically characterized), barking dogs, buzzing mosquitoes, crying shepherds, storms, drunken dancers, silent nights, hunting parties from both the hunters' and the prey's point of view, frozen landscapes, ice-skating children, and warming winter fires. Each concerto

12535-403: Was problematic. One of his symptoms, strettezza di petto ("tightness of the chest"), has been interpreted as a form of asthma . This did not prevent him from learning to play the violin, composing, or taking part in musical activities, although it prevented him from playing wind instruments. His father, Giovanni Battista, was a barber before becoming a professional violinist and was one of

12650-668: Was published by Giuseppe Sala. His Opus 1 is a collection of 12 sonatas for two violins and basso continuo , in a conventional style. In 1709, a second collection of 12 sonatas for violin and basso continuo appeared (Opus 2). A real breakthrough as a composer came with his first collection of 12 concerti for one, two, and four violins with strings, L'estro armonico (Opus 3), which was published in Amsterdam in 1711 by Estienne Roger , and dedicated to Grand Prince Ferdinand of Tuscany . The prince sponsored many musicians, including Alessandro Scarlatti and George Frideric Handel . He

12765-473: Was so popular that it was performed two years later, re-edited and retitled Artabano re dei Parti (RV 701, now lost). It was also performed in Prague in 1732. In the years that followed, Vivaldi wrote several operas that were performed all over Italy . His progressive operatic style caused him some trouble with more conservative musicians such as Benedetto Marcello , a magistrate and amateur musician who wrote

12880-431: Was speculation as to the nature of Vivaldi's and Girò's relationship, but no evidence exists to indicate anything beyond friendship and professional collaboration. Vivaldi, in fact, adamantly denied any romantic relationship with Girò in a letter to his patron Bentivoglio, dated 16 November 1737. Vivaldi collaborated with choreographer Giovanni Gallo on several of his later operas stage in Venice with Gallo choreographing

12995-486: Was the basis of several copies produced later by other artists, was made in 1725 by François Morellon de La Cave for the first edition of Il cimento dell'armonia e dell'inventione , and shows Vivaldi holding a sheet of music. The ink sketch, a caricature , was done by Ghezzi in 1723 and shows Vivaldi's head and shoulders in profile. It exists in two versions: a first jotting kept at the Vatican Library , and

13110-641: Was the deadliest of the 20th century. The 1960 Chilean earthquake is the largest earthquake that has been measured on a seismograph, reaching 9.5 magnitude on 22 May 1960. Its epicenter was near Cañete, Chile. The energy released was approximately twice that of the next most powerful earthquake, the Good Friday earthquake (27 March 1964), which was centered in Prince William Sound , Alaska. The ten largest recorded earthquakes have all been megathrust earthquakes ; however, of these ten, only

13225-440: Was to give shelter and education to children who were abandoned or orphaned, or whose families could not support them. They were financed by funds provided by the Republic. The boys learned a trade and had to leave when they reached the age of fifteen. The girls received a musical education, and the most talented among them stayed and became members of the Ospedale's renowned orchestra and choir. Shortly after Vivaldi's appointment,

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