Minor earthquake, 3.16 mag has occurred near Colma in CA

A minor earthquake with magnitude 3.16 (ml/mb) was detected on Saturday, 3 kilometers (2 miles) from Colma in CA. The earthquake occurred at a depth of 4.5500001907349 km (3 miles). The temblor was detected at 01:03:04 / 1:03 am (local time epicenter). Id of earthquake: nc75271341. Event ids that are associated: nc75271341. Exact location of earthquake, longitude -122.47766876221 West, latitude 37.654499053955 North, depth = 4.5500001907349 km. Exact time and date of event in UTC/GMT: 29/11/25 / 2025-11-29 01:03:04 / November 29, 2025 @ 1:03 am.

The epicenter was 62 km (39 miles) from San Jose (c. 945 900 pop), 14 km (9 miles) from San Francisco (c. 805 200 pop), 25 km (15 miles) from Oakland (c. 390 700 pop), 45 km (28 miles) from Fremont (c. 214 100 pop), 35 km (22 miles) from Hayward (c. 144 200 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Scotts Valley, Rohnert Park, Cotati. Nearby country/countries that might be effected, United States (c. 310 233 000 pop).

Each year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been one, in the last 10 days three, in the past 30 days eleven and in the last 365 days thirty-six 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.

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Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 3 km SSW of Colma, CA.

CA Colma Cotati Fremont Hayward Oakland Rohnert Park San Francisco San Jose Scotts Valley United States

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Parameter	Value	Description
Magnitude	3.16 mb	The magnitude for the event.
Longitude	-122.47766876221° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	37.654499053955° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	4.5500001907349 km	Depth of the event in kilometers.
Place	3 km SSW of Colma, CA	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-11-29 01:03:04	Time when the event occurred. UTC/GMT
Updated	2025-11-29 01:11:09	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt	51	The total number of felt reports
CDI	4.1	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	reviewed	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	175	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	82	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.01742	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.07 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	81	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	nc75271341	Id of event.
Event Code	75271341	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nc75271341,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.16 mag has occurred near Colma in CA

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