Minor earthquake, 3.11 mag strikes near Maxwell in CA

A minor earthquake magnitude 3.11 (ml/mb) has struck on Wednesday, 10 kilometers (6 miles) from Maxwell in CA. The temblor was reported at 22:09:00 / 10:09 pm (local time epicenter). Exact location of earthquake, -122.07917022705° West, 39.298831939697° North, depth -0.10000000149012 km. The epicenter of the earthquake was roughly -0.10000000149012 km (-0 miles) below the earth’s surface. All ids that are associated to the event: nc75226437. Unique identifier: nc75226437. Exact time and date of event in UTC/GMT: 20/08/25 / 2025-08-20 22:09:00 / August 20, 2025 @ 10:09 pm.

Country/countries that might be effected, United States (c. 310 233 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Woodland, Magalia, Corning (min 5000 pop). Event epicenter was 52 km (32 miles) from Chico (c. 86 200 pop), 44 km (27 miles) from Yuba City (c. 64 900 pop), 74 km (46 miles) from Woodland (c. 55 500 pop), 65 km (40 miles) from Paradise (c. 26 200 pop), 49 km (31 miles) from Linda (c. 17 800 pop).

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

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What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 10 km E of Maxwell, CA. This information comes from the USGS Earthquake Notification Service.

CA Chico Corning Linda Magalia Maxwell Paradise United States Woodland Yuba City

More information

Parameter	Value	Description
Magnitude	3.11 mb	The magnitude for the event.
Longitude	-122.07917022705° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	39.298831939697° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	-0.10000000149012 km	Depth of the event in kilometers.
Place	10 km E of Maxwell, CA	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-08-20 22:09:00	Time when the event occurred. UTC/GMT
Updated	2025-08-20 22:11:03	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	149	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	11	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.7086	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.26 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	234	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	nc75226437	Id of event.
Event Code	75226437	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nc75226437,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.11 mag strikes near Maxwell in CA

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