Minor earthquake, 3.09 mag strikes near The Geysers in CA

A minor earthquake with magnitude 3.09 (ml/mb) was reported 4 kilometers (2 miles) from The Geysers in CA on Saturday. Global date and time of event UTC/GMT: 25/10/25 / 2025-10-25 12:03:35 / October 25, 2025 @ 12:03 pm. All ids that are associated to the event: nc75254401. Unique identifier: nc75254401. Exact location of event, depth 2.2400000095367 km, -122.78033447266° West, 38.808498382568° North. The temblor was reported at 12:03:35 / 12:03 pm (local time epicenter). The earthquake was roughly at a depth of 2.2400000095367 km (1 miles).

Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Colusa, Novato, Winters (min 5000 pop). Event epicenter was 41 km (26 miles) from Santa Rosa (c. 167 800 pop), 71 km (44 miles) from Napa (c. 76 900 pop), 65 km (41 miles) from Petaluma (c. 57 900 pop), 80 km (50 miles) from Novato (c. 51 900 pop), 53 km (33 miles) from Rohnert Park (c. 41 000 pop).

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

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Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home 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: 4 km NNW of The Geysers, CA.

CA Colusa Napa Novato Petaluma Rohnert Park Santa Rosa The Geysers United States Winters

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Parameter	Value	Description
Magnitude	3.09 mb	The magnitude for the event.
Longitude	-122.78033447266° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	38.808498382568° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	2.2400000095367 km	Depth of the event in kilometers.
Place	4 km NNW of The Geysers, CA	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-10-25 12:03:35	Time when the event occurred. UTC/GMT
Updated	2025-10-25 12:09:18	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt	2	The total number of felt reports
CDI	2.2	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	147	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	0.004762	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	33	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	nc75254401	Id of event.
Event Code	75254401	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nc75254401,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.09 mag strikes near The Geysers in CA

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