Light earthquake, 4.38 mag was detected near Petrolia in CA

A light earthquake with magnitude 4.38 (ml/mb) was detected on Tuesday, 102 km W of Petrolia, CA (63 miles). Exact location of event, depth 2.19 km, -125.4779968° West, 40.4258347° North. Global time and date of event 12/01/21 / 2021-01-12 13:22:03 / January 12, 2021 @ 1:22 pm UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 2.19 km (1 miles) below the earth’s surface. Id of earthquake: nc73510010. Event ids that are associated: nc73510010. The temblor was picked up at 13:22:03 / 1:22 pm (local time epicenter).

In the past 24 hours, there have been two, in the last 10 days four, in the past 30 days seven and in the last 365 days fifty-six earthquakes of magnitude 3.0 or greater that have been detected in the same area. There are an estimated 13,000 light earthquakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

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What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 102 km W of Petrolia, CA.

CA Petrolia

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Parameter	Value	Description
Magnitude	4.38 mb	The magnitude for the event.
Longitude	-125.4779968° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	40.4258347° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	2.19 km	Depth of the event in kilometers.
Place	102km 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	2021-01-12 13:22:03	Time when the event occurred. UTC/GMT
Updated	2021-01-12 13:30:45	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt	2	The total number of felt reports
CDI	2.2	The maximum reported intensity for the event.
MMI	2.72	The maximum estimated instrumental intensity for the event.
Alert Level	green	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	296	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	98	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.8717	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.34 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	282	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	mw	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	nc73510010	Id of event.
Event Code	73510010	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nc73510010,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.38 mag was detected near Petrolia in CA

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