Minor earthquake, 2.83 mag was detected near Petrolia in CA

A minor earthquake with magnitude 2.83 (ml/mb) was reported 17 kilometers (11 miles) from Petrolia in CA on Monday. Exact location of earthquake, -124.14966583252° West, 40.215167999268° North, depth 11.470000267029 km. The epicenter of the earthquake was roughly 11.470000267029 km (7 miles) below the earth’s surface. Event ids that are associated to the earthquake: nc75157992. Id of event: nc75157992. Exact time and date of event in UTC/GMT: 31/03/25 / 2025-03-31 07:40:15 / March 31, 2025 @ 7:40 am. The temblor was picked up at 07:40:15 / 7:40 am (local time epicenter).

Closest city/cities/towns to epicentrum/hypocenter was Arcata, Bayside, Eureka (min 5000 pop). Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected). Epicenter of the earthquake was 65 km (41 miles) from Eureka (c. 27 200 pop), 73 km (45 miles) from Arcata (c. 17 200 pop), 70 km (44 miles) from Bayside (c. 17 100 pop), 43 km (26 miles) from Fortuna (c. 11 900 pop).

Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. In the past 24 hours, there have been 0, in the last 10 days two, in the past 30 days ten and in the last 365 days two hundred and fourty-one earthquakes of magnitude 3.0 or greater that has struck near. There are an estimated 1,300,000 minor earthquakes in the world each year.

How would you describe the shaking?

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 information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 17 km SSE of Petrolia, CA.

Arcata Bayside CA Eureka Fortuna Petrolia United States

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Parameter	Value	Description
Magnitude	2.83 mb	The magnitude for the event.
Longitude	-124.14966583252° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	40.215167999268° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	11.470000267029 km	Depth of the event in kilometers.
Place	17 km SSE 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	2025-03-31 07:40:15	Time when the event occurred. UTC/GMT
Updated	2025-03-31 07:44:13	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	123	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	28	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.03801	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.15 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	154	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	nc75157992	Id of event.
Event Code	75157992	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nc75157992,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 2.83 mag was detected near Petrolia in CA

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