Minor earthquake, 3.87 mag has occurred near Petrolia in CA

A minor earthquake with magnitude 3.87 (ml/mb) was reported 41 kilometers (25 miles) from Petrolia in CA on Friday. The epicenter of the earthquake was roughly 0.0099999997764826 km (0 miles) below the earth’s surface. The 3.87-magnitude earthquake was detected at 14:58:21 / 2:58 pm (local time epicenter). Exact location of earthquake, -124.77333068848° West, 40.318832397461° North, depth 0.0099999997764826 km. Id of earthquake: nc75097711. Event ids that are associated: nc75097711. Exact time and date of earthquake 06/12/24 / 2024-12-06 14:58:21 / December 6, 2024 @ 2:58 pm UTC/GMT.

Epicenter of the earthquake was 74 km (46 miles) from Eureka (c. 27 200 pop), 84 km (52 miles) from Arcata (c. 17 200 pop), 84 km (52 miles) from Bayside (c. 17 100 pop), 61 km (38 miles) from Fortuna (c. 11 900 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Arcata, Bayside, Eureka. Close country/countries that might be effected, United States (c. 310 233 000 pop).

In the past 24 hours, there have been eighty, in the last 10 days eighty-four, in the past 30 days eighty-five and in the last 365 days one hundred and fifteen earthquakes of magnitude 3.0 or greater that has struck near. There are an estimated 130,000 minor earthquakes in the world each year. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

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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: 41 km W of Petrolia, CA.

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Parameter	Value	Description
Magnitude	3.87 mb	The magnitude for the event.
Longitude	-124.77333068848° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	40.318832397461° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	0.0099999997764826 km	Depth of the event in kilometers.
Place	41 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	2024-12-06 14:58:21	Time when the event occurred. UTC/GMT
Updated	2024-12-06 15:01:34	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	230	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	61	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.3308	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.27 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	250	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	ml	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	nc75097711	Id of event.
Event Code	75097711	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nc75097711,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.87 mag has occurred near Petrolia in CA

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