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The 1812 San Juan Capistrano earthquake, also known simply as the Capistrano earthquake or the Wrightwood earthquake, [6] occurred on December 8 at 15:00 UTC (07:00 local time) in Alta California. At the time, this was a colonial territory of the Spanish Empire .
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 ...
The 2008 Uniform California Earthquake Rupture Forecast, Version 2, or UCERF2, is one of a series of earthquake forecasts prepared for the state California by the Working Group on California Earthquake Probabilities (WGCEP), collaboration of the United States Geological Survey, the California Geological Survey, and the Southern California ...
“Drop, Cover, Hold on. Protect yourself,” the U.S. Geological Survey warned moment before the eathquake struck.
PHOTO: A handout shakemap made available by the United States Geological Survey (USGS) shows the location of a 7.0-magnitude earthquake hitting off the coast of Cape Mendocino, Calif., on Dec. 5 ...
Nearly 75% of the country is at risk for a potentially damaging earthquake in the next 100 years, according to a recently updated map from the U.S. Geological Survey. The map is the first to ...
According to the USGS, "ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes. These maps are used by federal, state, and local organizations, both public and private, for post-earthquake response and recovery, public and scientific information, as well as for preparedness exercises and ...
California residents felt the impact of a major earthquake that occurred off the West Coast on Thursday.. The U.S. Geological Survey reported that a magnitude 7.0 earthquake occurred off the coast ...