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The first earthquake, a magnitude 3.6, hit just before 9:45 a.m. local time, according to the U.S. Geological Survey. It had a depth of 4.6 miles. It had a depth of 4.6 miles.
A magnitude 4.0 earthquake rattled parts of Southern California Sunday morning. ... Airport in the last month. Sunday's 3:51 a.m. earthquake was the fifth of magnitude 3 or higher detected 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.
Following destructive earthquakes in the late 19th and early 20th centuries, real estate developers, press, and boosters minimized and downplayed the risk of earthquakes out of fear that the ongoing economic boom would be negatively affected. [3] [4] California earthquakes (1769–2000)
At 4:57 a.m. local time (11:57 UTC) on June 28, 1992, a magnitude 7.3 earthquake awoke much of Southern California. Though it turned out it was not the so-called "Big One" as many people would think, it was still a very strong earthquake. The shaking lasted for two to three minutes.
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.
A Magnitude 3.6 earthquake struck in Southern California on Sept. 16, 2024, according to the United States Geological Survey, marking the second temblor to hit the region in less than five days.
The system issued alerts for several significant southern California earthquakes in 2014 including a M W 4.4 event in Encino, a M W 4.2 event in Westwood, and a M W 5.1 event in La Habra. [ 61 ] It also issued a warning 5.4 seconds after the beginning of the M W 6.0 South Napa earthquake that hit the Napa region on August 24, 2014. [ 62 ]