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Over 20 Earthquakes Rattle San Francisco Bay Area

11/14/2025

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Summary

Story summary

A swarm of more than 20 earthquakes struck the San Francisco Bay Area on November 9, 2025, with the largest at 3.8.
The U.S. Geological Survey said quakes began at 9:38 a.m. and were felt from Mill Valley to Half Moon Bay.
Seismologists warn quakes of this magnitude pose hazards, including building damage and downed power lines.
Officials advise dropping, covering, and holding on during shaking and to beware aftershocks.

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Story summary

A swarm of more than 20 earthquakes struck the San Francisco Bay Area on November 9, 2025, with the largest at 3.8.
The U.S. Geological Survey said quakes began at 9:38 a.m. and were felt from Mill Valley to Half Moon Bay.
Seismologists warn quakes of this magnitude pose hazards, including building damage and downed power lines.
Officials advise dropping, covering, and holding on during shaking and to beware aftershocks.