3.5 Quake Is Latest in SoCal Swarm

A magnitude-3.5 earthquake has struck near the southern San Andreas Fault in Southern California, the latest in a swarm that began two weeks ago.

The quake hit shortly after 3 p.m. yesterday at a depth of nearly 5 miles and was centered 2 miles south of the Salton Sea community of Bombay Beach in Imperial County.

More than 400 quakes have rattled the desert of southeastern California since mid-March including 13 larger than magnitude 3. The strongest was a magnitude-4.8 quake on March 24 that woke up residents, but did not cause damage.

Seismic activity in the Bombay Beach area has tamped down in the past week.

Seismologist Kate Hutton of Pasadena's California Institute of Technology said it will take a fair amount of quiet time before scientists can declare a swarm over.

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