Light earthquake, 4.31 mag was detected near Petrolia in CA

A light earthquake with magnitude 4.31 (ml/mb) was reported 58 kilometers (36 miles) from Petrolia in CA on Thursday. Event id: nc75096156. Ids that are associated to the earthquake: nc75096156, ew1733429070. Global date and time of event UTC/GMT: 05/12/24 / 2024-12-05 20:04:20 / December 5, 2024 @ 8:04 pm. Exact location of event, longitude -124.96416473389 West, latitude 40.330665588379 North, depth = -0.10000000149012 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was reported at 20:04:20 / 8:04 pm (local time epicenter). The earthquake occurred at a depth of -0.10000000149012 km (-0 miles).

Event epicenter was 86 km (53 miles) from Eureka (c. 27 200 pop), 95 km (59 miles) from Bayside (c. 17 100 pop), 74 km (46 miles) from Fortuna (c. 11 900 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Bayside, Eureka, Fortuna. Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light earthquakes in the world each year. In the past 24 hours, there have been nineteen, in the last 10 days twenty-three, in the past 30 days twenty-five and in the last 365 days fifty-five earthquakes of magnitude 3.0 or greater that has struck near.

Questions or comments?

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 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: 58 km WNW of Petrolia, CA.

Bayside CA Eureka Fortuna Petrolia United States

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Parameter	Value	Description
Magnitude	4.31 mb	The magnitude for the event.
Longitude	-124.96416473389° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	40.330665588379° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	-0.10000000149012 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 20:04:20	Time when the event occurred. UTC/GMT
Updated	2024-12-05 20:07:33	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	286	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,ew,	A comma-separated list of network contributors.
Number of Stations Used	45	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.4772	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.26 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	261	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	nc75096156	Id of event.
Event Code	75096156	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nc75096156,ew1733429070,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.31 mag was detected near Petrolia in CA

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