UPDATE: A swarm of earthquakes rattled the San Ramon area last night, with the most powerful registering at a magnitude of 4.0. The seismic activity began at 7:41 p.m., centered 3.1 miles southeast of San Ramon, according to the U.S. Geological Survey.
The seismic events escalated quickly, with a second magnitude 4.0 quake hitting at 7:49 p.m., also 3.1 miles southeast. Just minutes later, a magnitude 3.8 quake struck 2.4 miles southeast at 7:49 p.m., followed by another magnitude 4.0 at 7:56 p.m., approximately 3 miles southeast of the city. The swarm continued with a magnitude 3.1 at 7:57 p.m., located 2.6 miles southeast, and a magnitude 2.9 which occurred at 8:10 p.m., nearly 2.5 miles southeast of San Ramon.
Despite the intensity of the quakes, there have been no immediate reports of injuries or significant damage. However, BART has announced that train services are operating at reduced speeds while safety inspections are underway, leading to expected delays for commuters.
This surge in seismic activity is part of a troubling pattern in the region, raising concerns among residents and officials alike. As the situation develops, residents are urged to stay informed and prepared for potential aftershocks.
Check back for updates as authorities continue to monitor the situation closely.
