Minor earthquake, 2.81 mag was detected near Petrolia in CA

A minor earthquake magnitude 2.81 (ml/mb) has struck on Sunday, 38 kilometers (24 miles) from Petrolia in CA. All ids that are associated to the event: nc75260841. Unique identifier: nc75260841. Exact location of earthquake, longitude -124.71383333333 West, latitude 40.4355 North, depth = 22.54 km. Global time and date of event 09/11/25 / 2025-11-09 13:07:20 / November 9, 2025 @ 1:07 pm UTC/GMT. The temblor was reported at 13:07:20 / 1:07 pm (local time epicenter). The earthquake occurred at a depth of 22.54 km (14 miles) below the earth’s surface.

Close country/countries, United States (c. 310 233 000 pop) (That might be effected). Epicenter of the earthquake was 62 km (38 miles) from Eureka (c. 27 200 pop), 72 km (45 miles) from Arcata (c. 17 200 pop), 71 km (44 miles) from Bayside (c. 17 100 pop), 77 km (48 miles) from McKinleyville (c. 15 200 pop), 50 km (31 miles) from Fortuna (c. 11 900 pop). Nearest cities/city/towns to hypocenter/epicentrum was McKinleyville, Arcata, Bayside (min 5000 pop).

In the past 24 hours, there have been three, in the last 10 days three, in the past 30 days six and in the last 365 days two hundred and ninety 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. Each year there are an estimated 1,300,000 minor quakes in the world.

Questions or comments?

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: 38 km WNW of Petrolia, CA.

Arcata Bayside CA Eureka Fortuna McKinleyville Petrolia United States

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Parameter	Value	Description
Magnitude	2.81 mb	The magnitude for the event.
Longitude	-124.71383333333° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	40.4355° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	22.54 km	Depth of the event in kilometers.
Place	38 km WNW of Petrolia, 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 13:07:20	Time when the event occurred. UTC/GMT
Updated	2025-11-19 19:16:38	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	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	121	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	106	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.2947	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.17 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	228	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	md	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	nc75260841	Id of event.
Event Code	75260841	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nc75260841,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 2.81 mag was detected near Petrolia in CA

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