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Plaque showing location of San Andreas Fault in San Mateo County. The San Andreas Fault is a continental right-lateral strike-slip transform fault that extends roughly 1,200 kilometers (750 mi) through the U.S. state of California. [1] It forms part of the tectonic boundary between the Pacific plate and the North American plate. Traditionally ...
Southern California's complex rock formations are a result of uplift by the region's active faults. The San Gabriel and San Bernardino Mountains gained their height from the displacement of brittle granite crust by the San Andreas and the Elsinore Faults. Movement of the Sierra Madre and Raymond Fault have both lifted the northern Los Angeles ...
The Ranges rise steeply above major urban areas such as Los Angeles Snowy Mt. Baden-Powell in the San Gabriel Mountains. The western and central segments of the Transverse Ranges are bounded to the north and east by the San Andreas Fault, which separates those segments from the Mojave Desert.
The fault line absolutely devastated San Francisco back in 1906, and also wreaked havoc in southern California in 1857. While the fault hasn’t experienced a similar shake in the 21st century ...
A signpost in front of the Parkfield Cafe offers information and directions to various places, including the nearby San Andreas Fault which runs under the small population town of Parkfield on ...
It has formed between various branches of the San Andreas Fault [4] and the San Jacinto Fault [33] (which are connected by the Brawley Seismic Zone) [34] The Salton Trough is still actively subsiding at rates of 3 mm/a (0.12 in/year), increasing to 4–8 mm/a (0.16–0.31 in/year) in the central area of the Trough. [35]
The magnitude of a megathrust earthquake is proportional to length of the rupture along the fault. The Cascadia subduction zone, which forms the boundary between the Juan de Fuca and North American plates, is a very long sloping fault that stretches from mid-Vancouver Island to Northern California. [18]
A simulation of a plausible major southern San Andreas fault earthquake — a magnitude 7.8 that begins near the Mexican border along the fault plane and unzips all the way to L.A. County's ...