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Minor earthquake, 2.83 mag strikes near Petrolia in CA


Earthquake location 40.366165161133S, -124.92150115967WA minor earthquake magnitude 2.83 (ml/mb) has struck on Saturday, 54 kilometers (34 miles) from Petrolia in CA. Exact location of earthquake, -124.92150115967° West, 40.366165161133° North, depth 12.199999809265 km. The epicenter was at a depth of 12.199999809265 km (8 miles). Event id: nc75098781. Ids that are associated to the earthquake: nc75098781. The temblor was detected at 14:04:40 / 2:04 pm (local time epicenter). Exact time and date of event in UTC/GMT: 07/12/24 / 2024-12-07 14:04:40 / December 7, 2024 @ 2:04 pm.

Event epicenter was 70 km (43 miles) from Fortuna (c. 11 900 pop). Country/countries that might be effected, United States (c. 310 233 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Fortuna (min 5000 pop).

In the past 24 hours, there have been nineteen, in the last 10 days one hundred and two, in the past 30 days one hundred and three and in the last 365 days one hundred and thirty-four earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. There are an estimated 1,300,000 minor earthquakes 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. 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: 54 km WNW of Petrolia, CA.

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More information

Parameter Value Description
Magnitude 2.83 mb The magnitude for the event.
Longitude -124.92150115967° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.366165161133° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 12.199999809265 km Depth of the event in kilometers.
Place 54 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 2024-12-07 14:04:40 Time when the event occurred. UTC/GMT
Updated 2024-12-07 14:06:12 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 123 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 22 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.4493 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.24 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 267 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 nc75098781 Id of event.
Event Code 75098781 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc75098781, A comma-separated list of event ids that are associated to an event.

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