Minor earthquake, 3.75 mag strikes near Petrolia in CA

A minor earthquake with magnitude 3.75 (ml/mb) was detected on Thursday, 20 kilometers (12 miles) from Petrolia in CA. The temblor was picked up at 18:48:06 / 6:48 pm (local time epicenter). Id of earthquake: nc75001913. Event ids that are associated: nc75001913. Exact location of event, longitude -124.45566666667 West, latitude 40.4435 North, depth = 24.99 km. Exact time and date of event in UTC/GMT: 05/12/24 / 2024-12-05 18:48:06 / December 5, 2024 @ 6:48 pm. The earthquake occurred at a depth of 24.99 km (16 miles) below the earth’s surface.

Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was McKinleyville, Arcata, Bayside. Epicenter of the event was 47 km (29 miles) from Eureka (c. 27 200 pop), 57 km (35 miles) from Arcata (c. 17 200 pop), 55 km (34 miles) from Bayside (c. 17 100 pop), 63 km (39 miles) from McKinleyville (c. 15 200 pop), 31 km (19 miles) from Fortuna (c. 11 900 pop).

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. In the past 24 hours, there have been one hundred and thirty-four, in the last 10 days one hundred and thirty-four, in the past 30 days one hundred and thirty-six and in the last 365 days one hundred and sixty-three earthquakes of magnitude 3.0 or greater that have been detected nearby.

Questions or comments?

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. 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: 20 km NW of Petrolia, CA.

Arcata Bayside CA Eureka Fortuna McKinleyville Petrolia United States

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Parameter	Value	Description
Magnitude	3.75 mb	The magnitude for the event.
Longitude	-124.45566666667° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	40.4435° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	24.99 km	Depth of the event in kilometers.
Place	20 km NW 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 18:48:06	Time when the event occurred. UTC/GMT
Updated	2024-12-13 20:10:59	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	216	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	36	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.09569	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.11 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	234	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	nc75001913	Id of event.
Event Code	75001913	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nc75001913,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.75 mag strikes near Petrolia in CA

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