Minor earthquake: M2.89 quake has struck near Petrolia in CA

A minor earthquake magnitude 2.89 (ml/mb) strikes 12 kilometers (7 miles) from Petrolia in CA on Tuesday. Id of earthquake: nc75235207. Event ids that are associated: nc75235207. The earthquake was roughly at a depth of 9.5200004577637 km (6 miles). Exact time and date of event in UTC/GMT: 09/09/25 / 2025-09-09 01:28:42 / September 9, 2025 @ 1:28 am. Exact location, longitude -124.42183685303° West, latitude 40.312999725342° North, depth = 9.5200004577637 km. The temblor was detected at 01:28:42 / 1:28 am (local time epicenter).

Epicenter of the event was 59 km (36 miles) from Eureka (c. 27 200 pop), 68 km (42 miles) from Arcata (c. 17 200 pop), 66 km (41 miles) from Bayside (c. 17 100 pop), 75 km (47 miles) from McKinleyville (c. 15 200 pop), 39 km (24 miles) from Fortuna (c. 11 900 pop). Country/countries that might be effected, United States (c. 310 233 000 pop). Closest city/cities/towns to epicentrum/hypocenter was McKinleyville, Arcata, Bayside (min 5000 pop).

In the past 24 hours, there have been one, in the last 10 days four, in the past 30 days eight and in the last 365 days two hundred and seventy-nine earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. Each year there are an estimated 1,300,000 minor earthquakes in the world.

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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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 12 km W of Petrolia, CA. This information comes from the USGS Earthquake Notification Service.

Arcata Bayside CA Eureka Fortuna McKinleyville Petrolia United States

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Parameter	Value	Description
Magnitude	2.89 mb	The magnitude for the event.
Longitude	-124.42183685303° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	40.312999725342° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	9.5200004577637 km	Depth of the event in kilometers.
Place	12 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	2025-09-09 01:28:42	Time when the event occurred. UTC/GMT
Updated	2025-09-09 01:37:16	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	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	19	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.06538	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	272	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	nc75235207	Id of event.
Event Code	75235207	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nc75235207,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M2.89 quake has struck near Petrolia in CA

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