1.4 mi SW of Half Moon Bay (San Mateo County)
2 km NNE of Half Moon Bay, CA
Thursday, September 18, 2025 at 12:00:20 AM
6 months ago
Did you feel this earthquake?
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Epicenter Location
Be Prepared for Next Time
After feeling that M1.3 earthquake, are you ready?
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Community Reports
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Extended discussion with the community
What This Means
A magnitude 1.3 earthquake is typically not felt and is only detected by sensitive instruments. Thousands of these occur daily worldwide.
This was a shallow earthquake (2.3 mi deep), which can feel stronger at the surface than deeper earthquakes of the same magnitude.
Want to see more earthquakes?
Explore the live earthquake map and track all recent seismic activity in the Bay Area.