Minor earthquake, 3.43 mag was detected near Petrolia in CA

A minor earthquake magnitude 3.43 (ml/mb) strikes 4 kilometers (2 miles) from Petrolia in CA on Thursday. Unique identifier: nc73299195. Ids that are associated to the event: nc73299195. The earthquake was roughly at a depth of 28.96 km (18 miles). Exact location of earthquake, longitude -124.2371674 West, latitude 40.3144989 North, depth = 28.96 km. Global date and time of event UTC/GMT: 31/10/19 / 2019-10-31 12:46:55 / October 31, 2019 @ 12:46 pm. The 3.43-magnitude earthquake has occurred at 04:46:55 / 4:46 am (local time epicenter).

Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected). Epicenter of the earthquake was 55 km (34 miles) from Eureka (c. 27 200 pop), 63 km (39 miles) from Arcata (c. 17 200 pop), 60 km (38 miles) from Bayside (c. 17 100 pop), 71 km (44 miles) from McKinleyville (c. 15 200 pop), 32 km (20 miles) from Fortuna (c. 11 900 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was McKinleyville, Arcata, Bayside.

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

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 4 km ESE of Petrolia, CA.

More information

Parameter	Value	Description
Magnitude	3.43 mb	The magnitude for the event.
Longitude	-124.2371674° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	40.3144989° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	28.96 km	Depth of the event in kilometers.
Place	4km ESE 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	2019-10-31 12:46:55	Time when the event occurred. UTC/GMT
Updated	2019-10-31 12:52:02	Time when the event was most recently updated. UTC/GMT
Timezone offset	-480	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	181	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	17	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.0368	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.09 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	60	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	nc73299195	Id of event.
Event Code	73299195	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nc73299195,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.43 mag was detected near Petrolia in CA

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