Minor earthquake 3.33 mag, 20 km W of Petrolia, CA

A minor earthquake magnitude 3.33 (ml/mb) has struck on Monday, 20 kilometers (12 miles) from Petrolia in CA. The earthquake occurred at a depth of 18.879999160767 km (12 miles). The temblor was picked up at 08:22:31 / 8:22 am (local time epicenter). Global time and date of event 09/12/24 / 2024-12-09 08:22:31 / December 9, 2024 @ 8:22 am UTC/GMT. Exact location of event, longitude -124.51916503906 West, latitude 40.293998718262 North, depth = 18.879999160767 km. Event id: nc75099971. Ids that are associated to the earthquake: nc75099971.

Earthquake epicenter was 64 km (40 miles) from Eureka (c. 27 200 pop), 74 km (46 miles) from Arcata (c. 17 200 pop), 72 km (45 miles) from Bayside (c. 17 100 pop), 81 km (50 miles) from McKinleyville (c. 15 200 pop), 46 km (28 miles) from Fortuna (c. 11 900 pop). Nearest cities/city/towns to hypocenter/epicentrum was McKinleyville, Arcata, Bayside (min 5000 pop). Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected).

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

Questions or comments?

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: 20 km W of Petrolia, CA.

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Parameter	Value	Description
Magnitude	3.33 mb	The magnitude for the event.
Longitude	-124.51916503906° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	40.293998718262° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	18.879999160767 km	Depth of the event in kilometers.
Place	20 km 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	2024-12-09 08:22:31	Time when the event occurred. UTC/GMT
Updated	2024-12-09 08:27:17	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	2.7	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	171	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	24	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.1352	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	268	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	nc75099971	Id of event.
Event Code	75099971	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nc75099971,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake 3.33 mag, 20 km W of Petrolia, CA

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