Minor earthquake, 2.91 mag has occurred near Petrolia in CA

A minor earthquake with magnitude 2.91 (ml/mb) was detected on Sunday, 24 kilometers (15 miles) from Petrolia in CA. The earthquake occurred at a depth of 16.43 km (10 miles). The 2.91-magnitude earthquake has occurred at 06:39:19 / 6:39 am (local time epicenter). Exact location of event, longitude -124.564003 West, latitude 40.2798347 North, depth = 16.43 km. Event ids that are associated to the earthquake: nc73522931. Id of event: nc73522931. Exact time and date of earthquake 14/02/21 / 2021-02-14 06:39:19 / February 14, 2021 @ 6:39 am UTC/GMT.

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 Arcata, Bayside, Eureka. The epicenter was 67 km (42 miles) from Eureka (c. 27 200 pop), 77 km (48 miles) from Arcata (c. 17 200 pop), 75 km (47 miles) from Bayside (c. 17 100 pop), 49 km (31 miles) from Fortuna (c. 11 900 pop).

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

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity 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: 24 km WSW of Petrolia, CA.

More information

Parameter	Value	Description
Magnitude	2.91 mb	The magnitude for the event.
Longitude	-124.564003° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	40.2798347° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	16.43 km	Depth of the event in kilometers.
Place	24km WSW 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	2021-02-14 06:39:19	Time when the event occurred. UTC/GMT
Updated	2021-02-14 06:40:55	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	130	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	13	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.2292	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	255	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	nc73522931	Id of event.
Event Code	73522931	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nc73522931,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 2.91 mag has occurred near Petrolia in CA

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