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Minor earthquake: M2.81 quake has struck near Petrolia in CA


Earthquake location 40.366664886475S, -125.00250244141WA minor earthquake with magnitude 2.81 (ml/mb) was reported 61 kilometers (38 miles) from Petrolia in CA on Friday. The earthquake occurred at a depth of 14.229999542236 km (9 miles) below the earth’s surface. Unique identifier: nc75097521. Ids that are associated to the event: nc75097521. The temblor was reported at 11:05:14 / 11:05 am (local time epicenter). Date and time of earthquake in UTC/GMT: 06/12/24 / 2024-12-06 11:05:14 / December 6, 2024 @ 11:05 am. Exact location of earthquake, longitude -125.00250244141 West, latitude 40.366664886475 North, depth = 14.229999542236 km.

Nearest cities/city/villages to epicentrum/hypocenter was Fortuna (min 5000 pop). Earthquake epicenter was 76 km (47 miles) from Fortuna (c. 11 900 pop). Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected).

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

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 61 km WNW of Petrolia, CA.

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More information

Parameter Value Description
Magnitude 2.81 mb The magnitude for the event.
Longitude -125.00250244141° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.366664886475° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 14.229999542236 km Depth of the event in kilometers.
Place 61 km WNW 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 2024-12-06 11:05:14 Time when the event occurred. UTC/GMT
Updated 2024-12-06 11:06:56 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 121 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 20 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.5105 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.24 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 271 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 nc75097521 Id of event.
Event Code 75097521 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc75097521, A comma-separated list of event ids that are associated to an event.

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