Feb 02, 2026
Dozens of earthquakes struck near San Ramon on Monday, according to the United States Geological Survey. The temblors come after quake swarms have struck the area in recent months. Here’s a look at the earthquakes reported Monday in the San Ramon area: 3:10 p.m. – preliminary 1.8 mag nitude 3:09 p.m. – preliminary 2.2 magnitude 3:08 p.m. – preliminary 2.4 magnitude 3:06 p.m. – preliminary 2.9 magnitude 3:04 p.m. – preliminary 3.1 magnitude 2:56 a.m. – preliminary 3.1 magnitude 2:47 p.m. – preliminary 1.5 magnitude 2:38 p.m. – preliminary 2.2 magnitude 2:06 p.m. – preliminary 2.5 magnitude 1:57 p.m. – preliminary 1.7 magnitude 12:17 a.m. – preliminary 2.2 magnitude 1:40 p.m. – preliminary 1.5 magnitude 1:38 p.m. – preliminary 1.5 magnitude 12:17 p.m. – preliminary 2.2 magnitude 11:34 a.m. – preliminary 1.7 magnitude 11:09 a.m. – preliminary 1.6 magnitude 11:02 a.m. – preliminary 2.0 magnitude 10:51 a.m. – preliminary 2.4 magnitude 10:32 a.m. – preliminary 2.0 magnitude 10:25 a.m. – preliminary 1.8 magnitude 10:15 a.m. – preliminary 1.7 magnitude 9:03 a.m. – preliminary 2.5 magnitude 8:44 a.m. – preliminary 2.5 magnitude 8:38 a.m. – preliminary 2.2 magnitude 8:25 a.m. – preliminary 1.6 magnitude 8:19 a.m. – preliminary 2.2 magnitude 7:58 a.m. – preliminary 1.9 magnitude 7:54 a.m. – preliminary 2.8 magnitude 7:48 a.m. – preliminary 2.6 magnitude 7:42 a.m. – preliminary 2.8 magnitude 7:41 a.m. – preliminary 2.5 magnitude 7:40 a.m. – preliminary 2.2 magnitude 7:36 a.m. – preliminary 2.8 magnitude 7:35 a.m. – preliminary 2.0 magnitude 7:34 a.m. – preliminary 2.6 magnitude 7:32 a.m. – preliminary 2.0 magnitude 7:31 a.m. – preliminary 1.8 magnitude 7:27 a.m. – preliminary 3.8 magnitude 7:26 a.m. – preliminary 2.1 magnitude 7:26 a.m. – preliminary 1.8 magnitude 7:23 a.m. – preliminary 3.0 magnitude 7:14 a.m. – preliminary 2.0 magnitude 7:09 a.m. – preliminary 2.3 magnitude 7:07 a.m. – preliminary 2.8 magnitude 7:06 a.m. – preliminary 3.1 magnitude 7:04 a.m. – preliminary 2.3 magnitude 7:03 a.m. – preliminary 2.7 magnitude 7:01 a.m. – preliminary 4.2 magnitude 7:00 a.m. – preliminary 2.2 magnitude 6:56 a.m. – preliminary 2.5 magnitude 6:48 a.m. – preliminary 2.5 magnitude 6:39 a.m. – preliminary 2.0 magnitude 6:36 a.m. – preliminary 1.3 magnitude 6:32 a.m. – preliminary 2.0 magnitude 6:29 a.m. – preliminary 3.3 magnitude 6:27 a.m. – preliminary 3.8 magnitude There were no immediate reports of injury or damage. Surveillance cameras at 7-Eleven stores in the San Ramon area did capture goods falling from shelves. The most powerful of Monday’s quakes was a magnitude 4.2 that struck shortly after 7 a.m. just south of San Ramon, according to the USGS. The area has experienced earthquake swarms — when multiple small magnitude earthquakes strike over a short period of time — for decades, according to seismology experts. The earthquake swarm that struck Monday is the 10th sequence since scientists began documenting them in 1970, said Lucy Jones, a veteran seismologist in Southern California. Big quakes in the Bay Area are typically due to major faults, including the Hayward and San Andreas, which runs along the Northern California coast before moving inland. The earthquake swarms could be an indication of a new fault starting to form — though it would take tens of thousands of years to prove that theory, Jones said. “It’s a gradual creation of a fault that’s going to take 100,000 years,” she said. The Associated Press contributed to this report. BAY AREA QUAKE CENTRAL You can take steps to plan and prepare for the next big one. Access our Bay Area Quake Tracker, the latest earthquake stories, extensive quake prep checklists, videos and many other disaster preparedness resources all in one place: NBCBAYAREA.COM/QUAKES ...read more read less
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