5-781: The Walker Lane is a geologic trough roughly aligned with the California / Nevada border southward to where Death Valley intersects the Garlock Fault , a major left lateral, or sinistral, strike-slip fault . The north-northwest end of the Walker Lane is between Pyramid Lake in Nevada and California's Lassen Peak where the Honey Lake Fault Zone , the Warm Springs Valley Fault, and
10-634: Is the portion of the Walker Lane that extends south from Owens Valley , and continues across and south of the Garlock Fault, across the Mojave Desert to the San Andreas Fault . Several magnitude 7+ earthquakes have occurred along the eastern California shear zone, including the 1992 Landers earthquake , 1999 Hector Mine earthquake , the 2019 Ridgecrest earthquakes sequence, as well as the powerful 1872 Lone Pine earthquake in
15-707: The Pyramid Lake Fault Zone meet the transverse tectonic zone forming the southern boundary of the Modoc Plateau and Columbia Plateau provinces. The Walker Lane takes up 15 to 25 percent of the boundary motion between the Pacific plate and the North American plate , the other 75 percent being taken up by the San Andreas Fault system to the west. The Walker Lane may represent an incipient major transform fault zone which could replace
20-461: The Owens Valley. Trough (geology) In geology, a trough is a linear structural depression that extends laterally over a distance. Although it is less steep than a trench , a trough can be a narrow basin or a geologic rift . These features often form at the rim of tectonic plates . There are various oceanic troughs on the ocean floors. This geomorphology article
25-555: The San Andreas as the plate boundary in the future. The Walker Lane deformation belt also accommodates nearly 12 mm/yr of dextral shear between the Sierra Nevada–Great Valley Block and North America . The belt is characterized by the northwest-striking trans-current faults and co-evolutionary dip-slip faults formed as result of a spatially segregated displacement field. The eastern California shear zone
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