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Minor earthquake: M2.83 quake has struck near Petrolia in CA


Earthquake location 40.249332427979S, -124.70783233643WA minor earthquake with magnitude 2.83 (ml/mb) was detected on Thursday, 37 kilometers (23 miles) from Petrolia in CA. The epicenter was at a depth of 14.239999771118 km (9 miles). Event ids that are associated to the earthquake: nc75162841. Id of event: nc75162841. The 2.83-magnitude earthquake has occurred at 08:27:50 / 8:27 am (local time epicenter). Exact location of event, longitude -124.70783233643 West, latitude 40.249332427979 North, depth = 14.239999771118 km. Global time and date of event 10/04/25 / 2025-04-10 08:27:50 / April 10, 2025 @ 8:27 am UTC/GMT.

Event epicenter was 77 km (48 miles) from Eureka (c. 27 200 pop), 61 km (38 miles) from Fortuna (c. 11 900 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Eureka, Fortuna. Nearby country/countries that might be effected, United States (c. 310 233 000 pop).

Each year there are an estimated 1,300,000 minor quakes in the world. 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 three, in the past 30 days seven and in the last 365 days two hundred and fifty-nine earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel it?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city 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: 37 km W of Petrolia, CA.

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More information

Parameter Value Description
Magnitude 2.83 mb The magnitude for the event.
Longitude -124.70783233643° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.249332427979° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 14.239999771118 km Depth of the event in kilometers.
Place 37 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 2025-04-10 08:27:50 Time when the event occurred. UTC/GMT
Updated 2025-04-10 08:29:27 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 22 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.2822 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.19 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 278 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 nc75162841 Id of event.
Event Code 75162841 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc75162841, A comma-separated list of event ids that are associated to an event.

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