Fort_Tejon_earthquake Parkfield_earthquake
what possibly largest earthquake on san andreas fault in last several hundred years 1857 fort tejon earthquake, fault rupture general vicinity of parkfield san bernardino in southern california, distance of 360 km (220 mi) , offset of 9 meters (30 feet). epicenter of earthquake (by various sources) believed somewhere in region cholame parkfield, location @ extreme northern end of locked portion of fault , @ southern end of rapidly periodic segment. believed earthquake preceded magnitude 6.0 foreshock centered @ parkfield.
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