San Ramon Hit By Quakes For Third Time In Under 24 Hours

Earthquake swarm continues to rattle Northern California city, seismologists say

A swarm of at least a dozen earthquakes reaching up to magnitude 3.9 rattled San Ramon near San Francisco, the U.S. Geological Survey reports. The other quakes in the Saturday, Dec. 21, swarm ranged from magnitude 1.3 to 3.0, according to the USGS. San Ramon earlier was hit by a swarm of more than 90 quakes starting Nov. 9, The Sacramento Bee previously reported. On Dec. 13, six more small ...

San Ramon hit by three earthquakes in last 24 hours; 150 in 2025: Here's why

San Ramon experienced three more earthquakes on Sunday, including magnitudes of 3.9, 2.8, and 3.0, according to the U.S. Geological Survey.

San Ramon Hit By Quakes For Third Time In Under 24 Hours

The city was hit by three more quakes Saturday night, bringing the 24-hour total to nine earthquakes.

Swarm of earthquakes continue as 3 more strike in San Ramon

By Brandon Downs At least three more earthquakes struck in San Ramon Saturday night, according to data from the U.S. Geological Survey. The first earthquake, a preliminary magnitude 3.9, rattled the area around 6:30 p.m. The second was a preliminary magnitude  2.8 about five minutes later. The third, a preliminary magnitude 3.0, struck at 6:53 p.m. Light shaking was reported in the area.  The community has experienced several earthquakes this mo…