The Fort Tejon earthquake occurred on January 9, 1857, with an estimated magnitude of 8.0. It ruptured the San Andreas Fault for a length of 362 kilometers (225 miles), between Parkfield and San Bernardino. Displacement along the fault was 9 meters (30 feet). The epicenter of this earthquake is thought to have been located between Parkfield and Cholame. January 9 is the 9th day of the year in the Gregorian calendar. ... 1857 was a common year starting on Thursday (see link for calendar). ... View of the San Andreas Fault on the Carrizo Plain in central California The San Andreas Fault is a geological fault, known as a right-lateral strike-slip fault, that spans a length of roughly 800 miles (1287 kilometers) through California. ... Parkfield is a village in Monterey County, California. ... San Bernardino is the county seat of San Bernardino County, California, United States. ... The epicenter is directly above the earthquakes focus. ... Global earthquake epicenters, 1963–1998 An earthquake is a sudden and sometimes catastrophic movement of a part of the Earths surface. ... Cholame, California is an unincorporated community in San Luis Obispo County, California, USA. It sits at an elevation of 1,157 feet (351 m) above sea level and is located at 35. ...
Only two fatalities were recorded as a result of this earthquake.
External links
USGS Earthquake Hazards Program - 1857 Fort Tejon Earthquake
Earthquakes, especially those that occur beneath oceans or seas, can give rise to tsunamis, either as a direct result of the deformation of the sea bed due to the earthquake, or as a result of submarine landslips or "slides" indirectly triggered by it.
Earthquake effects are described in terms of intensity, a scale which attempts to quantify the severity of shaking at a given location.
Earthquakes such as these, that are caused by human activity, are referred to by the term induced seismicity.
Technically, Parkfield was the epicenter of this earthquake, as it was the origin of the rupture, but most scientists would be more concerned with the extent and location of the entire rupture; FortTejon was approximately the midway point of the rupture.
FortTejon, on the other hand, suffered considerable damage from the mainshock, and it was battered by aftershocks for months and years to come -- both a direct consequence of the Fort's proximity to the fault.
FortTejon, seems to be the region where her disease is located, for the good people of that Post, are almost nightly entertained with earthquake shocks.
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