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1906 San Francisco earthquake. / 37.75; -122.55. At 05:12 Pacific Standard Time on Wednesday, April 18, 1906, the coast of Northern California was struck by a major earthquake with an estimated moment magnitude of 7.9 and a maximum Mercalli intensity of XI ( Extreme ).
Magnitude of the earthquake and aftershocks. The 1994 Northridge earthquake affected the Los Angeles area of California on January 17, 1994, at 04:30:55 PST. The epicenter of the moment magnitude 6.7 ( Mw) blind thrust earthquake was beneath the San Fernando Valley. [3] Lasting approximately 8 seconds and achieving the largest peak ground ...
The 1989 Loma Prieta earthquake occurred on California's Central Coast on October 17 at 5:04 p.m. local time. The shock was centered in The Forest of Nisene Marks State Park in Santa Cruz County, approximately 10 mi (16 km) northeast of Santa Cruz on a section of the San Andreas Fault System and was named for the nearby Loma Prieta Peak in the Santa Cruz Mountains.
A map showing the location of an earthquake in Ventura County, California, on 20 August, 2023 (US Geological Survey) “We are in the middle of the first tropical storm since 1939, and we just had ...
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 ...
The most notable of these earthquakes is the 1872 Owens Valley earthquake, with an estimated magnitude of 7.4 M w (preferred; other estimates range as high as 7.9 [114]). The Owens Valley quake is believed to be the greatest earthquake on record and not just for California, but also for the western continental United States. [115]
A 3.8-magnitude earthquake shook the Southern California area, the U.S. Geological Survey reported.. The nearly 11-mile deep quake hit about 4 miles east northeast of Ojai in Ventura County, about ...
Since the three damaging earthquakes that occurred in the American Midwest and the United States East Coast ( 1755 Cape Ann, 1811–12 New Madrid, 1886 Charleston) were well known, it became apparent to settlers that the earthquake hazard was different in California. While the 1812 San Juan Capistrano, 1857 Fort Tejon, and 1872 Owens Valley ...