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The United States Geological Survey says there have been at least 40 other earthquakes of a magnitude 6.0 or larger in the region during the last 100 years. 7.0 California Shake Intensity
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 National Weather Service said that the tsunami warning that extended along 500 miles (800 km) of the California and Oregon coasts was called off about 90 minutes after the earthquake struck at ...
A 7.0 magnitude earthquake was reported off the coast of Northern California on Thursday, according to the United States Geological Survey. The epicenter of the "strong" quake was off the coast ...
Stretching for 250 kilometers (160 mi), it is the second-longest fault in California, and one of the most prominent geological features in the southern part of the state. It marks the northern boundary of the area known as the Mojave Block, as well as the southern ends of the Sierra Nevada and the valleys of the westernmost Basin and Range ...
Read more:California remains in puzzling earthquake 'drought' despite recent shaking. Even smaller cities have passed mandatory retrofit ordinances. The city council of Albany, a community of ...
The San Jacinto Fault Zone and the San Andreas Fault (SAF) accommodate up to 80% of the slip rate between the North American and Pacific plates.The extreme southern portion of the SAF has experienced two moderate events in historical times, while the SJFZ is one of California's most active fault zones and has repeatedly produced both moderate and large events.
A magnitude 7.0 earthquake struck California near the town of Petrolia, about 265 miles north of San Francisco, Thursday morning generating a strong shake and a now-discontinued tsunami warning ...