Minor earthquake, 3.72 mag strikes near Petrolia in CA

A minor earthquake magnitude 3.72 (ml/mb) has occurred on Tuesday, 10 kilometers (6 miles) from Petrolia in CA. The earthquake occurred at a depth of 5.22 km (3 miles) below the earth’s surface. Unique identifier: nc73133251. Ids that are associated to the event: nc73133251. Exact location of event, depth 5.22 km, -124.3966675° West, 40.3358345° North. The temblor was reported at 12:21:37 / 12:21 pm (local time epicenter). Global time and date of event 15/01/19 / 2019-01-15 20:21:37 / January 15, 2019 @ 8:21 pm UTC/GMT.

Epicenter of the event was 55 km (34 miles) from Eureka (c. 27 200 pop), 65 km (40 miles) from Arcata (c. 17 200 pop), 63 km (39 miles) from Bayside (c. 17 100 pop), 72 km (45 miles) from McKinleyville (c. 15 200 pop), 36 km (22 miles) from Fortuna (c. 11 900 pop). Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected). Nearest cities/city/villages to epicentrum/hypocenter was McKinleyville, Arcata, Bayside (min 5000 pop).

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

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 10 km W of Petrolia, CA.

More information

Parameter	Value	Description
Magnitude	3.72 mb	The magnitude for the event.
Longitude	-124.3966675° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	40.3358345° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	5.22 km	Depth of the event in kilometers.
Place	10km 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	2019-01-15 20:21:37	Time when the event occurred. UTC/GMT
Updated	2019-01-15 20:34:28	Time when the event was most recently updated. UTC/GMT
Timezone offset	-480	Timezone offset from UTC in minutes at the event epicenter.
Felt	0	The total number of felt reports
CDI	1	The maximum reported intensity for the event.
MMI	4.17	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	213	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	9	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.1274	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.06 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	246	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	nc73133251	Id of event.
Event Code	73133251	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nc73133251,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.72 mag strikes near Petrolia in CA

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