Minor earthquake: M3.21 quake has struck near Pleasanton in CA

A minor earthquake magnitude 3.21 (ml/mb) has occurred on Sunday, 5 kilometers (3 miles) from Pleasanton in CA. All ids that are associated to the event: nc75234557. Unique identifier: nc75234557. The earthquake occurred at a depth of 13.720000267029 km (9 miles) below the earth’s surface. The temblor was detected at 17:03:50 / 5:03 pm (local time epicenter). Exact location of earthquake, longitude -121.86367034912 West, latitude 37.708831787109 North, depth = 13.720000267029 km. Exact time and date of earthquake 07/09/25 / 2025-09-07 17:03:50 / September 7, 2025 @ 5:03 pm UTC/GMT.

Nearest cities/city/towns to hypocenter/epicentrum was Galt, Escalon, Modesto (min 5000 pop). Close country/countries, United States (c. 310 233 000 pop) (That might be effected). Earthquake epicenter was 41 km (26 miles) from San Jose (c. 945 900 pop), 49 km (31 miles) from San Francisco (c. 805 200 pop), 37 km (23 miles) from Oakland (c. 390 700 pop), 57 km (36 miles) from Stockton (c. 291 700 pop), 21 km (13 miles) from Fremont (c. 214 100 pop).

Each year there are an estimated 130,000 minor quakes in the world. 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 twenty-nine 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.

Questions or comments?

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 5 km N of Pleasanton, CA. This information comes from the USGS Earthquake Notification Service.

CA Escalon Fremont Galt Modesto Oakland Pleasanton San Francisco San Jose Stockton United States

More information

Parameter	Value	Description
Magnitude	3.21 mb	The magnitude for the event.
Longitude	-121.86367034912° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	37.708831787109° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	13.720000267029 km	Depth of the event in kilometers.
Place	5 km N of Pleasanton, CA	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-09-07 17:03:50	Time when the event occurred. UTC/GMT
Updated	2025-09-07 17:12:16	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt	4	The total number of felt reports
CDI	4.3	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	160	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	87	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.0878	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.18 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	31	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	nc75234557	Id of event.
Event Code	75234557	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nc75234557,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3.21 quake has struck near Pleasanton in CA

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