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Seismogram of the earthquake. The earthquake measured 6.4 on the moment magnitude scale, and had a maximum Mercalli intensity of VIII (Severe).It came exactly a year after a 6.2 magnitude earthquake struck onshore in the Cape Mendocino area on December 20, 2021, [7] causing only minor damage. [8]
December 20, 2022 at 3:12 PM. A 6.4-magnitude earthquake rocked coastal Northern California early Tuesday, leaving thousands in the dark as officials warned that another major jolt could still be ...
The July 2019 Ridgecrest earthquakes consist of three main shocks of magnitudes 6.4, 5.4, and 7.1, each followed by a flurry of aftershocks of substantially lower magnitude. The aftershocks of the Ridgecrest earthquakes reveal two fault zones. The July 4 M 6.4 event (orange dot) occurred on the SW-NE fault where it intersects the NW-SE oriented ...
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 ...
The magnitude 4.7 quake just north of Malibu on Thursday was the 14th seismic sequence so far this year in Southern California with at least one earthquake of magnitude 4 or higher, Jones said ...
Thursday’s 5.5 magnitude quake, centered in the waters of Lake Almanor in northwestern Plumas County struck at 4:19 p.m., according to the U.S. Geological Survey. The aftershock struck at 3:18 a ...
200–2,000 injured [4] The 1971 San Fernando earthquake (also known as the 1971 Sylmar earthquake) occurred in the early morning of February 9 in the foothills of the San Gabriel Mountains in southern California. The unanticipated thrust earthquake had a magnitude of 6.5 on the Ms scale and 6.6 on the Mw scale, and a maximum Mercalli intensity ...
On Friday, at 10:26 a.m., a magnitude 3.6 earthquake — down from an original estimate of 3.8 — occurred with an epicenter just north of the Ojai Valley, causing weak shaking to be felt from ...