San Ramon Quake Swarm Continues With Twin Magnitude-3 Shakes Saturday Morning
SAN RAMON (CBS/AP) -- The U.S. Geological Survey reports that two small earthquakes hit the San Ramon area early Saturday morning, the latest in a series of small quakes to hit the region recently.
The agency says the magnitude-3.2 earthquake hit about 12:43 a.m. with an epicenter about a half mile from San Ramon. It was followed about a minute later by a magnitude-3.1 temblor in the same vicinity.
The earthquakes are the latest of a swarm of small earthquakes that has been rattling the area, with more than 200 recorded since last week.
All the previous quakes were centered around the city of San Ramon on either the Calaveras Fault or offshoots of it. The largest struck Monday and was logged as a magnitude-3.5, according to the U.S. Geological Survey. No injuries or major damage have been reported.
Experts say such swarms are not unusual or cause for extra concern.
COMPLETE QUAKE COVERAGE: CBS Earthquake Resource Center
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