Minor earthquake, 2.92 mag has occurred near San Ramon in CA

A minor earthquake with magnitude 2.92 (ml/mb) was detected on Monday, 4 kilometers (2 miles) from San Ramon in CA. Event ids that are associated to the earthquake: nc75276341. Id of event: nc75276341. Date and time of earthquake in UTC/GMT: 08/12/25 / 2025-12-08 10:33:41 / December 8, 2025 @ 10:33 am. The earthquake was roughly at a depth of 8.4799995422363 km (5 miles). The temblor was reported at 10:33:41 / 10:33 am (local time epicenter). Exact location of earthquake, longitude -121.93983459473 West, latitude 37.755500793457 North, depth = 8.4799995422363 km.

Event epicenter was 46 km (29 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), 61 km (38 miles) from Stockton (c. 291 700 pop), 23 km (15 miles) from Fremont (c. 214 100 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Galt, Scotts Valley, Patterson. Close country/countries, United States (c. 310 233 000 pop) (That might be effected).

There are an estimated 130,000 minor quakes in the world each year. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days five, in the past 30 days twenty and in the last 365 days fifty-one earthquakes of magnitude 3.0 or greater that have been detected nearby.

Did you feel the quake?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 4 km SE of San Ramon, CA. This data comes from the USGS Earthquake Notification Service.

CA Fremont Galt Oakland Patterson San Francisco San Jose San Ramon Scotts Valley Stockton United States

More information

Parameter	Value	Description
Magnitude	2.92 mb	The magnitude for the event.
Longitude	-121.93983459473° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	37.755500793457° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	8.4799995422363 km	Depth of the event in kilometers.
Place	4 km SE of San Ramon, CA	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-12-08 10:33:41	Time when the event occurred. UTC/GMT
Updated	2025-12-08 10:42:27	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt	45	The total number of felt reports
CDI	3.8	The maximum reported intensity for the event.
MMI		The maximum estimated instrumental intensity for the event.
Alert Level		The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status	automatic	Indicates whether the event has been reviewed by a human.
Tsunami	0	This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG	148	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	nc	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,nc,	A comma-separated list of network contributors.
Number of Stations Used	79	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.03177	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.09 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	25	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	ml	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	nc75276341	Id of event.
Event Code	75276341	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nc75276341,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 2.92 mag has occurred near San Ramon in CA

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