California bracing for the ‘Big One’? Experts weigh in as earthquake swarm hits for 4th day in a row

San Ramon has been hit by multiple quakes over the past four days, including magnitudes 2.9, 2.3, and 2.2 on December 13, a 2.8-magnitude quake on December 14 and 2.4 and 2.1 on December 15. There were dozens of other smaller tremors. Read More | San Jose earthquake: Massive jolt in California; tremors in Hollister, Salinas and Dublin

Earthquake swarm resumes to rattle Northern California city, seismologists say

A swarm of at least six earthquakes reaching up to magnitude 2.9 rattled San Ramon near San Francisco, the U.S. Geological Survey reports.

Earthquake swarms keep rattling the Bay Area. What’s going on?

The clusters of earthquakes have all been underneath the East Bay suburb of San Ramon, which is close to the Calaveras fault. There were at least 19 earthquakes of magnitude 2 or greater on Monday alone.
Merced Sun-Star

Update: Seismic activity on Nov. 20 - 3.2 magnitude earthquake close to San Ramon, CA reported

CONTRA COSTA COUNTY, CA - According to the U.S. Geological Survey, a 3.2 magnitude quake rattled close to San Ramon Thursday morning. A tremor shook the area at 7:27 a.m. The earthquake's epicenter was located about 2 miles southeast of San Ramon and ...
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