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Probabilistic seismic hazard map. 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 ...
A magnitude 4.2 earthquake was felt widely across the nation's second largest city Friday and shook things off shelves near the epicenter in a small mountain community east of Los Angeles, but ...
A map shows earthquakes above magnitude 2.5 that struck in the last week in Southern California. Quakes marked in orange occurred over a 24-hour period ending at 9 a.m. Monday, while those in ...
A pair of modest earthquakes rattled Southern California on Saturday morning, with epicenters in Ontario. The earthquakes, of magnitudes 3.5 and 3.9, occurred within about a half hour of each other.
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.
1857 Fort Tejon earthquake; 1868 Hayward earthquake; 1872 Owens Valley earthquake; 1892 Laguna Salada earthquake; 1892 Vacaville–Winters earthquakes; 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 ...
A map of Southern California faults and recent earthquakes ... could kill 3,000 to 18,000 people, according to the USGS and Southern California Earthquake ... L.A. where it is today, but they also ...
The same report also estimated there is a 7% probability that an earthquake of magnitude 8.0 or greater will occur in the next 30 years somewhere along the San Andreas Fault. [24] A different USGS study in 2008 tried to assess the physical, social and economic consequences of a major earthquake in southern California.