Experts Fear “Quake Swarm” Signals Long-Anticipated “Big One”

 

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Seismologists fear a ‘megaquake’ could be coming have been raised following a series of more than 35 temblors recorded by the Southern California Seismic Network that struck a rural area of Southern California near the U.S.-Mexico border. For seven-days following Tuesday, the chances of a magnitude-7 or greater earthquake being triggered on the southern San Andreas fault are as high as 1 in 100 and as low as 1 in 3,000. It marked only the third time since earthquake sensors were installed there in 1932 that the area had seen such a swarm, and this one had more earthquakes than the events of 2001 and 2009.


The megaquake –the ‘Big One,’ a hypothetical earthquake of magnitude 8 or greater that is expected to happen along the San Andreas fault–could wreck havoc to human civilization within about 50-100 miles of the quake zone, especially in urban areas like Palm Springs, Los Angeles and San Francisco.

Contingency plans have a wost case of upward of 14,000 people dead in the worst-case scenarios, 30,000 injured, thousands left homeless and the region’s economy setback for years, if not decades.

‘This is close enough to be in that worry zone,’ seismologist Lucy Jones told the LA Times of the location of the earthquake swarm.’It’s a part of California that the seismologists all watch.’

The largest earthquake recorded by the U.S. Geological Survey was magnitude 4.3 at 7:31 a.m. and was centered 35 miles (58 kilometers) northwest of El Centro.

The Daily Galaxy via LA Times and USGS

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