Minor earthquake, 3.56 mag strikes near Petrolia in CA

A minor earthquake with magnitude 3.56 (ml/mb) was detected on Monday, 43 kilometers (27 miles) from Petrolia in CA. The 3.56-magnitude earthquake was detected at 08:35:49 / 8:35 am (local time epicenter). Exact location, longitude -124.78233337402° West, latitude 40.420166015625° North, depth = 11.64999961853 km. Unique identifier: nc75099986. Ids that are associated to the event: ew1733733350, nc75099986. Exact time and date of earthquake 09/12/24 / 2024-12-09 08:35:49 / December 9, 2024 @ 8:35 am UTC/GMT. The earthquake occurred at a depth of 11.64999961853 km (7 miles) below the earth’s surface.

Nearest cities/city/villages to epicentrum/hypocenter was McKinleyville, Arcata, Bayside (min 5000 pop). Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Epicenter of the earthquake was 67 km (42 miles) from Eureka (c. 27 200 pop), 77 km (48 miles) from Arcata (c. 17 200 pop), 77 km (48 miles) from Bayside (c. 17 100 pop), 82 km (51 miles) from McKinleyville (c. 15 200 pop), 56 km (35 miles) from Fortuna (c. 11 900 pop).

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

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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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 43 km WNW of Petrolia, CA. This data comes from the USGS Earthquake Notification Service.

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Parameter	Value	Description
Magnitude	3.56 mb	The magnitude for the event.
Longitude	-124.78233337402° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	40.420166015625° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	11.64999961853 km	Depth of the event in kilometers.
Place	43 km WNW 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	2024-12-09 08:35:49	Time when the event occurred. UTC/GMT
Updated	2024-12-09 08:43:50	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt	1	The total number of felt reports
CDI	2.2	The maximum reported intensity for the event.
MMI	2.384	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	195	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	,ew,nc,	A comma-separated list of network contributors.
Number of Stations Used	57	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.344	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.25 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	237	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	nc75099986	Id of event.
Event Code	75099986	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ew1733733350,nc75099986,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.56 mag strikes near Petrolia in CA

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