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USGS map showing faults that span the Pacific–North America plate boundary. The Hayward Fault Zone is a right-lateral strike-slip geologic fault zone capable of generating destructive earthquakes. The fault was first named in the Lawson Report of the 1906 San Francisco Earthquake in recognition of its involvement in the earthquake of 1868. [1]
Probabilistic seismic hazard map. 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 ...
There is an 80.62% chance of a major earthquake within 31 miles of Stanislaus County within the next 50 years, according to the 2017 hazard plan, and the probability of one impacting the region is ...
The temblor followed three earlier small earthquakes — a magnitude 2.7 that struck near the Hayward fault at 5:03 a.m., followed by a magnitude 3.3 at 11:52 a.m., then a 3.2 at 11:54 a.m.
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.
Multiple earthquakes shook California's Bay Area Thursday afternoon. The earthquakes occurred near Hayward, around 20 miles southeast of Oakland, with the strongest one hitting at 1:59 p.m. local ...
The Maacama Fault is a right lateral-moving (dextral) geologic fault located in the Coast Ranges of northwestern California.It is considered to be the northernmost segment of the Hayward Fault subsystem of the San Andreas Fault zone.
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 ...