Minor earthquake, 2.89 mag was detected near Petrolia in CA

A minor earthquake magnitude 2.89 (ml/mb) has struck on Thursday, 62 kilometers (39 miles) from Petrolia in CA. Id of earthquake: nc75239202. Event ids that are associated: nc75239202. The epicenter was at a depth of 10 km (6 miles). The temblor was reported at 16:01:10 / 4:01 pm (local time epicenter). Exact location of earthquake, longitude -125.01066666667 West, latitude 40.409666666667 North, depth = 10 km. Exact time and date of event in UTC/GMT: 18/09/25 / 2025-09-18 16:01:10 / September 18, 2025 @ 4:01 pm.

Epicenter of the event was 75 km (47 miles) from Fortuna (c. 11 900 pop). Close country/countries that might be effected, United States (c. 310 233 000 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Fortuna.

In the past 24 hours, there have been 0, in the last 10 days six, in the past 30 days eleven and in the last 365 days three hundred and twelve earthquakes of magnitude 3.0 or greater that has struck near. 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.

Did you feel the quake?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 62 km W of Petrolia, CA.

CA Fortuna Petrolia United States

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Parameter	Value	Description
Magnitude	2.89 mb	The magnitude for the event.
Longitude	-125.01066666667° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	40.409666666667° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	10 km	Depth of the event in kilometers.
Place	62 km W 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	2025-09-18 16:01:10	Time when the event occurred. UTC/GMT
Updated	2025-09-21 22:03:05	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	128	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	99	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.5247	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.32 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	246	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	nc75239202	Id of event.
Event Code	75239202	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nc75239202,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 2.89 mag was detected near Petrolia in CA

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