VolcanoYT

Disaster Monitoring

Earthquake 4 km SE of San Ramon, CA

Sun, 21 Dec 2025 02:53:47 GMT

Time1 hour ago
Location
37.7508, -121.9437
Depth
9.9 KM

Event Summary

A 3.0 magnitude earthquake struck on 4 km SE of San Ramon, CA, at Sun, 21 Dec 2025 02:53:47 GMT. Depth: 9.9399995803833km. Reviewed by USGS seismologists, this minor quake occurred at a magnitude type of md.

Magnitude
3.0
md
Map of 4 km SE of San Ramon, CA
Source
USGS
Intensity
-

Earthquake Details

Automatic
Event IDusgs_nc75283726
Tsunami PotentialNo
Magnitude Typemd

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