Wednesday 24 Dec 2025 7.55pm | 7 hours ago | Author: EarthquakeMonitor
The United States Geological Survey reported a magnitude 3.0 quake in the United States near San Ramon, Contra Costa County, California, only 17 minutes ago. The earthquake hit in the morning on Wednesday, December 24th, 2025, at 11:36 am local time at a very shallow depth of 5.5 miles. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
Our monitoring service identified a second report from The Incorporated Research Institutions for Seismology (IRIS)whichlistedthequakeatmagnitude30aswellAthirdagencytheEuropean-MediterraneanSeismologicalCentre(EMSC)reportedthesamequakeatmagnitude30
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include San Ramon (pop. 76,100) located 3 miles from the epicenter, Dublin (pop. 57,700) 3 miles away, Danville (pop. 44,400) 6 miles away, Pleasanton (pop. 79,500) 7 miles away, Castro Valley (pop. 61,400) 9 miles away, Hayward (pop. 158,300) 9 miles away, and Livermore (pop. 88,100) 10 miles away. In San Francisco (pop. 827,500, 26 miles away), and San Jose (pop. 997,400, 28 miles away), the quake was probably not felt.
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Earthquake data:
I felt this quake
Date & time: Dec 24, 2025 11:36 am (GMT -8) local time (24 Dec 2025 19:36 GMT)
Magnitude: 3.0
Depth: 8.81 km
Epicenter latitude / longitude: 37.75°N / 121.94°W 
(Contra Costa County, California, United States)
Primary data source: USGS
