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Saturday, Dec 20, 2025 03:58 | 31 mins ago | By: EarthquakeMonitor

The United States Geological Survey reported a magnitude 3.8 quake in the United States near San Ramon, Contra Costa County, California, only 8 minutes ago. The earthquake hit early evening on Friday, December 19th, 2025, at 7:49 pm local time at a very shallow depth of 5.8 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.
A second report was later issued by The Incorporated Research Institutions for Seismology (IRIS), which listed it as a magnitude 3.8 earthquake as well. A third agency, the European-Mediterranean Seismological Centre (EMSC), reported the same quake at magnitude 3.8.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in 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) 10 miles away, and Livermore (pop. 88,100) 10 miles away.
Other towns or cities near

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RSS feed source: Volcano Discovery.com--Global earthquake monitor

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