SAN RAMON, Calif. (KGO) — Did you feel them? A 4.2 earthquake struck near San Ramon Monday morning, following a 3.9 quake amid a string of at least a dozen tremors in the area, the U.S. Geological Survey said.

Did you feel them? A preliminary 4.2 earthquake struck near San Ramon Monday morning, following a 3.9 quake and a string of tremors, the U.S. Geological Survey said.

The 4.2 quake struck at 7:01 a.m. and followed a string of quakes that began with a 3.9 at 6:27 a.m. At least five other smaller tremors struck as well before 7 a.m.

USGS said the 4.2 tremor was about 9.4 km in depth.

These are the latest quakes in San Ramon, which has seen multiple strings of tremors in the past several months.

MAP: Significant San Francisco Bay Area fault lines and strong earthquakes
Zoom in on the map below and compare where you live to the significant faults and where strong earthquakes have struck in the Bay Area.

Stay with ABC7 News for the latest details on this developing story.

RELATED STORIES & VIDEOS:

Now Streaming 24/7 Click Here

Copyright © 2026 KGO-TV. All Rights Reserved.