Minor earthquake 2.9 mag, 86 km WNW of Petrolia, CA

A minor earthquake magnitude 2.9 (ml/mb) has struck on Sunday, 86 km WNW of Petrolia, CA (53 miles). The epicenter was at a depth of 4.7600002288818 km (3 miles). Exact time and date of earthquake 20/07/25 / 2025-07-20 00:08:59 / July 20, 2025 @ 12:08 am UTC/GMT. The temblor was reported at 00:08:59 / 12:08 am (local time epicenter). Exact location of event, depth 4.7600002288818 km, -125.29133605957° West, 40.387832641602° North. Unique identifier: nc75212242. Ids that are associated to the event: nc75212242.

In the past 24 hours, there have been 0, in the last 10 days four, in the past 30 days thirteen and in the last 365 days two hundred and ninety-five earthquakes of magnitude 3.0 or greater that was reported nearby. There are an estimated 130,000 minor quakes in the world each year. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

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How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage 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: 86 km WNW of Petrolia, CA.

CA Petrolia

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Parameter	Value	Description
Magnitude	2.9 mb	The magnitude for the event.
Longitude	-125.29133605957° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	40.387832641602° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	4.7600002288818 km	Depth of the event in kilometers.
Place	86 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	2025-07-20 00:08:59	Time when the event occurred. UTC/GMT
Updated	2025-07-20 00:10:28	Time when the event was most recently updated. UTC/GMT
Timezone offset		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	129	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	33	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.732	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.4 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	283	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	md	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	nc75212242	Id of event.
Event Code	75212242	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nc75212242,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake 2.9 mag, 86 km WNW of Petrolia, CA

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