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Minor earthquake, 2.85 mag has occurred near Petrolia in CA


Earthquake location 40.348166666667S, -124.9645WA minor earthquake with magnitude 2.85 (ml/mb) was reported 58 kilometers (36 miles) from Petrolia in CA on Thursday. Global time and date of event 05/12/24 / 2024-12-05 21:55:02 / December 5, 2024 @ 9:55 pm UTC/GMT. Exact location of earthquake, longitude -124.9645 West, latitude 40.348166666667 North, depth = 1.36 km. Unique identifier: nc75096451. Ids that are associated to the event: nc75096451. The temblor was detected at 21:55:02 / 9:55 pm (local time epicenter). The epicenter of the earthquake was roughly 1.36 km (1 miles) below the earth’s surface.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Fortuna. Close country/countries that might be effected, United States (c. 310 233 000 pop). Earthquake epicenter was 74 km (46 miles) from Fortuna (c. 11 900 pop).

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. In the past 24 hours, there have been one hundred and sixty-two, in the last 10 days one hundred and sixty-seven, in the past 30 days one hundred and sixty-nine and in the last 365 days two hundred earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel anything?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city 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: 58 km WNW of Petrolia, CA.

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More information

Parameter Value Description
Magnitude 2.85 mb The magnitude for the event.
Longitude -124.9645° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.348166666667° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 1.36 km Depth of the event in kilometers.
Place 58 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 2024-12-05 21:55:02 Time when the event occurred. UTC/GMT
Updated 2024-12-17 17:35:27 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 reviewed 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 125 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 50 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.4792 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.14 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 249 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 nc75096451 Id of event.
Event Code 75096451 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc75096451, A comma-separated list of event ids that are associated to an event.

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