Minor earthquake, 2.87 mag strikes near San Ramon in CA

A minor earthquake magnitude 2.87 (ml/mb) strikes 3 kilometers (2 miles) from San Ramon in CA on Sunday. Global date and time of event UTC/GMT: 09/11/25 / 2025-11-09 17:41:27 / November 9, 2025 @ 5:41 pm. The 2.87-magnitude earthquake was detected at 17:41:27 / 5:41 pm (local time epicenter). Exact location of event, longitude -121.96050262451 West, latitude 37.75566482544 North, depth = 6.9499998092651 km. The epicenter of the earthquake was roughly 6.9499998092651 km (4 miles) below the earth’s surface. Event id: nc75260866. Ids that are associated to the earthquake: nc75260866.

Epicenter of the earthquake was 47 km (29 miles) from San Jose (c. 945 900 pop), 40 km (25 miles) from San Francisco (c. 805 200 pop), 28 km (17 miles) from Oakland (c. 390 700 pop), 63 km (39 miles) from Stockton (c. 291 700 pop), 23 km (14 miles) from Fremont (c. 214 100 pop). Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Salida, Boyes Hot Springs, Ben Lomond.

There are an estimated 1,300,000 minor quakes in the world each year. In the past 24 hours, there have been three, in the last 10 days four, in the past 30 days six and in the last 365 days thirty-four earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 3 km SSE of San Ramon, CA.

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Parameter	Value	Description
Magnitude	2.87 mb	The magnitude for the event.
Longitude	-121.96050262451° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	37.75566482544° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	6.9499998092651 km	Depth of the event in kilometers.
Place	3 km SSE 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	2025-11-09 17:41:27	Time when the event occurred. UTC/GMT
Updated	2025-11-09 17:43:36	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt		The total number of felt reports
CDI		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	127	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	5	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.1014	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.01 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	123	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	nc75260866	Id of event.
Event Code	75260866	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nc75260866,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 2.87 mag strikes near San Ramon in CA

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