VolcanoYT

Disaster Monitoring

Earthquake 4 km ESE of San Ramon, CA

Sun, 21 Dec 2025 16:48:28 GMT

Time1 hour ago
Location
37.7615, -121.9360
Depth
7.5 KM

Event Summary

A 2.1 magnitude earthquake struck on 4 km ESE of San Ramon, CA, at Sun, 21 Dec 2025 16:48:28 GMT. Depth: 7.5km. Reviewed by USGS seismologists, this minor quake occurred at a magnitude type of md.

Magnitude
2.1
md
Map of 4 km ESE of San Ramon, CA
Source
USGS
Intensity
-

Earthquake Details

Automatic
Event IDusgs_nc75284131
Tsunami PotentialNo
Magnitude Typemd

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