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A 4.4 magnitude earthquake was strongly felt Monday afternoon from the Los Angeles area all the way to San Diego, swaying buildings, rattling dishes and setting off car alarms, but no major damage ...
The magnitude 4.2 quake was reported at 6:16 p.m. 11 miles from Temecula, according to the U.S. Geological Survey.
An average of 25 earthquakes with magnitudes between 4.0 and 5.0 occur per year in California and Nevada, according to a recent three-year data sample. The earthquake occurred at a depth of 5.6 miles.
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.
It is estimated that this zone is capable of producing a quake of 6.5–7.5 M W. The projected interval between major rupture events is 250 years. The last major rupture event on the main Elsinore fault was in 1910 with a 6 M W earthquake centered just northwest of the city of Lake Elsinore. [3]
The 1987 Whittier Narrows earthquake occurred in the southern San Gabriel Valley and surrounding communities of Southern California, United States, at 7:42 a.m. PDT on October 1. The moderate magnitude 5.9 blind thrust earthquake was centered several miles north of Whittier in the town of Rosemead , had a relatively shallow depth, and was felt ...
A magnitude 4 earthquake rattled Southern California before dawn Sunday morning — the strongest in a series of modest earthquakes to strike near the Ontario International Airport in the last month.
The earthquake was a right-lateral strike-slip event, and involved the rupture of several different faults over a length of 75 to 85 km (47 to 53 mi). [5] [6] The names of those that were involved are the Johnson Valley, Kickapoo (also known as Landers), Homestead Valley, Homestead/Emerson, Emerson Valley and Camp Rock faults. [5] [6]