This is the so-called "Big One" that makes many Californians understandably nervous and inspires a variety of apocalyptic disaster speculations. Seismologists in California are predicting another major earthquake may strike in the days ahead. Older buildings would be especially prone to damage or collapse, as would buildings built on unconsolidated gravel or in coastal areas where water tables are high (and thus subject to soil liquefaction). The fault was identified in 1895 by Professor Andrew Lawson of UC Berkeley, who discovered the northern zone. A "big one" quake of a magnitude-8.0 near the San … 10 Ways To Get Cheap Homeowners Insurance, Insurance Checklist For College Students And Their Parents, How Does The National Flood Insurance Program Work, Hosts With The Most Need Home-Sharing Insurance. No one can predict with certainty when the next massive earthquake— aka “The Big One”—will rock Southern California. An array of sensors will be installed to record earthquakes that happen near this area. The San Andreas began to form in the mid Cenozoic about 30 Mya (million years ago). [4] The fault then runs along the southern base of the San Bernardino Mountains, crosses through the Cajon Pass and continues northwest along the northern base of the San Gabriel Mountains. Where Is My Stimulus Check? The fault divides into three segments, each with different characteristics and a different degree of earthquake risk. equal to or greater than the 1994 Northridge earthquake) occurs about once every 6.7 years statewide. But while the Big One would definitely wreak mass destruction, it would not sink part of California into the ocean, nor would it break the state off from the rest of the country. Disaster-preparedness experts worry that Californians are underprepared for a colossal quake, particularly when it comes to insurance. It returns underwater through the linear trough of Tomales Bay which separates the Point Reyes Peninsula from the mainland, runs just east of Bodega Head through Bodega Bay and back underwater, returning onshore at Fort Ross. “We don’t talk enough about the financial implications. The Big One Is Coming To Southern California. The southern segment, which stretches from Parkfield in Monterey County all the way to the Salton Sea, is capable of an 8.1-magnitude earthquake. Of course, all of this research doesn’t prove The Big One is imminent. After that, it runs underwater along the coast until it nears Cape Mendocino, where it begins to bend to the west, terminating at the Mendocino Triple Junction. © 2021 Forbes Media LLC. Forbes adheres to strict editorial integrity standards. Following recorded seismic events in 1857, 1881, 1901, 1922, 1934, and 1966, scientists predicted that another earthquake should occur in Parkfield in 1993. When The Big One hits it’ll take under two minutes for more than 10 million Southern Californians to lose internet, power, and a sense of security. [11] The first known incarnation of the southern part of the fault was Clemens Well-Fenner-San Francisquito fault zone around 22–13 Ma. The quakes exposed a “web” of 20 previously undiscovered small earthquake faults that contributed to the Ridgecrest event. The San Andreas Fault has had some notable earthquakes in historic times: A continental transform fault through California between the Pacific Plate and the North American Plate, This article is about the continental fault in California. It also includes a possible driver for the deformation of the Basin and Range, separation of the Baja California Peninsula, and rotation of the Transverse Range. "The Big One" "The Big One" is often described as an earthquake with a magnitude 8 or above, causing massive destruction to California, which some … One hypothesis – which gained interest following the Landers earthquake in 1992 – suggests the plate boundary may be shifting eastward away from the San Andreas towards Walker Lane. However, according to some of his reports from 1895 and 1908, Lawson actually named it after the surrounding San Andreas Valley. Translation: The threat of The Big One might be bigger than anyone imagined.
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