October 2016 – SANTA ANA, CA. – Southern
California residents should remain on heightened alert until Tuesday
for the increased possibility of a major earthquake, officials said. The
warning by the Governor’s Office of Emergency Services follows a series
of small temblors deep under the Salton Sea, which is located on the
800-mile-long San Andreas fault, the Orange County Register reported
Saturday. Such warnings are typically issued once or twice a year, said
Kelly Huston, the deputy director of crisis communications for the
Governor’s Office of Emergency Services.
The latest alert was issued after 142
temblors hit starting Monday near Bombay Beach at the southern end of
the fault. Those quakes ranged from a magnitude of 1.4 to 4.3, the U.S.
Geological Survey said. Scientists estimate the probability of a quake
with a magnitude of 7.0 or higher on the southern San Andreas Fault
being triggered is as high as 1 in 100 and as low as 1 in 3,000. The
average chance for such an earthquake striking on any given week is 1 in
6,000. That heightened probability will last through Tuesday.
Earthquakes along the San Andreas
typically occur every 300 years, said Morgan Page, a geophysicist with
the USGS. Earthquake Science Center, but the southernmost end of the
fault hasn’t ruptured since 1690. “There is significant stress stored on
the southern end,” Page said. Gov. Jerry Brown on Thursday signed
legislation to develop a statewide warning system to inform Californians
of impending earthquakes through their cell phones, radios and other
devices. “California is earthquake country,” said Mark Ghilarducci, the
director of the state’s Office of Emergency Services. “We must always be
prepared and not let our guard down.” –Bloomberg
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