A minor earthquake magnitude 3.81 (ml/mb) has struck on Saturday, 5 kilometers (3 miles) from San Ramon in CA. The earthquake occurred at a depth of 9.8999996185303 km (6 miles) below the earth’s surface. Exact time and date of earthquake 20/12/25 / 2025-12-20 03:56:09 / December 20, 2025 @ 3:56 am UTC/GMT. The temblor was detected at 03:56:09 / 3:56 am (local time epicenter). All ids that are associated to the event: nc75283031. Unique identifier: nc75283031. Exact location of earthquake, longitude -121.94200134277 West, latitude 37.748165130615 North, depth = 9.8999996185303 km.
Closest city/cities/towns to epicentrum/hypocenter was Ceres, Opal Cliffs, Laguna (min 5000 pop). Country/countries that might be effected, United States (c. 310 233 000 pop). Event epicenter was 46 km (28 miles) from San Jose (c. 945 900 pop), 42 km (26 miles) from San Francisco (c. 805 200 pop), 30 km (18 miles) from Oakland (c. 390 700 pop), 62 km (38 miles) from Stockton (c. 291 700 pop), 23 km (14 miles) from Fremont (c. 214 100 pop), 84 km (52 miles) from Modesto (c. 201 200 pop).
Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. There are an estimated 130,000 minor earthquakes in the world each year. In the past 24 hours, there have been four, in the last 10 days eleven, in the past 30 days twenty-four and in the last 365 days sixty-four earthquakes of magnitude 3.0 or greater that have been detected nearby.
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How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 5 km SE of San Ramon, CA. This information comes from the USGS Earthquake Notification Service.
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