The Advanced National Seismic System (ANSS) is a collaboration of the United States Geological Survey (USGS) and regional, state, and academic partners that collects and analyzes data on significant earthquakes to provide near real-time (generally within 10 to 30 minutes) information to emergency responders and officials, the news media, and the public. Such information is used to anticipate the likely severity and extent of damage, and to guide decisions on the responses needed.
5-670: Data is collected by eleven regional seismic networks and the National Seismic Network ("ANSS backbone") of dedicated stations, with additional inputs from overseas seismic networks. Analysis is done at the regional data centers, and at the USGS National Earthquake Information Center (NEIC), with the results posted at the USGS earthquake web page ( https://earthquake.usgs.gov/earthquakes/ ). The National Strong Motion Project of
10-642: Is part of the United States Geological Survey (USGS) located on the campus of the Colorado School of Mines in Golden, Colorado . The NEIC has three main missions: Using a combination of automated tools and human review, NEIC issues moment magnitude and location information as soon as possible after a quake. As earthquake waves take time to travel around the globe, the estimated moment magnitude may change as more information
15-716: Is received. The NEIC uses seismograms recorded in the United States as well as around the globe. While they gather as much data as they can, some nations do not release earthquake data to the United States for political reasons. NEIC personnel are often sought out by the news media after a large earthquake as experts. Thus the NEIC has a higher public profile than other parts of the US Geological Survey . This United States government–related article
20-597: The ANSS has instrumented 168 structures to record their response to very strong shaking. This data is used in research on earthquake-resistant engineering. The ANSS provides a range of products and services: These can be accessed at the USGS Earthquake page: https://earthquake.usgs.gov/earthquakes/ . As of 2023 the following networks were participating in the ANSS: Additional stations are operated by
25-530: The USGS Albuquerque Seismological Laboratory (ASL). The regional networks are deemed authoritative for the location and magnitude of earthquakes in their region. The NEIC receives additional data from about 3,000 stations around the world, and provides backup if a regional network is unable to communicate. National Earthquake Information Center The National Earthquake Information Center (abbreviated NEIC )
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