BOMBAY BEACH, Calif.—A small earthquake has struck near the southern San Andreas Fault, the latest in a swarm that began two weeks ago.

The magnitude-3.5 earthquake hit shortly after 3 p.m. Wednesday and was centered 2 miles south of the small Imperial County town of Bombay Beach.

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 the California Institute of Technology says it will take a fair amount of quiet time before scientists can declare a swarm over.