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Minor earthquake 2.86 mag, 21 km W of Petrolia, CA


Earthquake location 40.306499481201S, -124.5273361206WA minor earthquake magnitude 2.86 (ml/mb) strikes 21 kilometers (13 miles) from Petrolia in CA on Saturday. Exact location of earthquake, longitude -124.5273361206 West, latitude 40.306499481201 North, depth = 10.800000190735 km. The epicenter of the earthquake was roughly 10.800000190735 km (7 miles) below the earth’s surface. Event ids that are associated to the earthquake: nc75129822. Id of event: nc75129822. The 2.86-magnitude earthquake has occurred at 09:23:37 / 9:23 am (local time epicenter). Exact time and date of earthquake 08/02/25 / 2025-02-08 09:23:37 / February 8, 2025 @ 9:23 am UTC/GMT.

Country/countries that might be effected, United States (c. 310 233 000 pop). Event epicenter was 63 km (39 miles) from Eureka (c. 27 200 pop), 73 km (45 miles) from Arcata (c. 17 200 pop), 71 km (44 miles) from Bayside (c. 17 100 pop), 45 km (28 miles) from Fortuna (c. 11 900 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Arcata, Bayside, Eureka.

In the past 24 hours, there have been one, in the last 10 days five, in the past 30 days eighteen and in the last 365 days two hundred and twenty-seven earthquakes of magnitude 3.0 or greater that have been detected nearby. 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.

Did you feel the quake?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 21 km W of Petrolia, CA. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.86 mb The magnitude for the event.
Longitude -124.5273361206° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.306499481201° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10.800000190735 km Depth of the event in kilometers.
Place 21 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 2025-02-08 09:23:37 Time when the event occurred. UTC/GMT
Updated 2025-02-08 09:25:14 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 126 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 24 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1424 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.1 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 nc75129822 Id of event.
Event Code 75129822 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc75129822, A comma-separated list of event ids that are associated to an event.

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