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The earliest known earthquake in the U.S. state of California was documented in 1769 by the Spanish explorers and Catholic missionaries of the Portolá expedition as they traveled northward from San Diego along the Santa Ana River near the present site of Los Angeles. Ship captains and other explorers also documented earthquakes.
The Statewide California Earthquake Center (SCEC) is a collaboration of more than 1,000 scientists across 100 research institutions focused primarily on conducting research on earthquakes in Southern California and elsewhere by gathering data, conducting theoretical studies, and performing computer simulations; integrate information into a comprehensive, physics-based understanding of ...
The probability of a serious earthquake on various faults has been estimated in the 2008 Uniform California Earthquake Rupture Forecast. According to the United States Geological Survey, Southern California experiences nearly 10,000 earthquakes every year. [3] Details on specific faults can be found in the USGS Quaternary Fault and Fold Database.
A simulation of a plausible major southern San Andreas fault earthquake — a magnitude 7.8 that begins near the Mexican border along the fault plane and unzips all the way to L.A. County's ...
1898 Mare Island earthquake; 1899 San Jacinto earthquake; 1906 San Francisco earthquake; 1915 Imperial Valley earthquakes; 1918 San Jacinto earthquake; 1925 Santa Barbara earthquake; 1927 Lompoc earthquake; 1932 Eureka earthquake; 1933 Long Beach earthquake; 1940 El Centro earthquake; 1948 Desert Hot Springs earthquake; 1952 Kern County ...
The last major quake on that fault occurred in 1933 — the magnitude 6.4 Long Beach earthquake. The 1933 quake left nearly 120 dead and caused $40 million in property damage.
He pointed to major quakes like the 1857 and 1906 San Andreas earthquakes, as well 1994’s Northridge earthquake, all of which were under the 8.0 magnitude contemplated in “Big One” scenarios ...
Lasting approximately 8 seconds and achieving the largest peak ground acceleration of over 1.7 g, it was the largest earthquake in the area since 1971. Shaking was felt as far away as San Diego, Turlock, Las Vegas, Richfield, Phoenix, and Ensenada. [4] Fifty-seven people died and more than 9,000 were injured.