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Minor earthquake, 2.81 mag strikes near Petrolia in CA


Earthquake location 40.294166564941S, -124.45583343506WA minor earthquake magnitude 2.81 (ml/mb) has struck on Friday, 15 kilometers (9 miles) from Petrolia in CA. Exact time and date of event in UTC/GMT: 06/12/24 / 2024-12-06 09:53:03 / December 6, 2024 @ 9:53 am. The epicenter of the earthquake was roughly 16.450000762939 km (10 miles) below the earth’s surface. Exact location of earthquake, -124.45583343506° West, 40.294166564941° North, depth 16.450000762939 km. Id of earthquake: nc75097446. Event ids that are associated: nc75097446. The 2.81-magnitude earthquake has occurred at 09:53:03 / 9:53 am (local time epicenter).

Epicenter of the event was 62 km (38 miles) from Eureka (c. 27 200 pop), 71 km (44 miles) from Arcata (c. 17 200 pop), 69 km (43 miles) from Bayside (c. 17 100 pop), 42 km (26 miles) from Fortuna (c. 11 900 pop). Closest city/cities/towns to epicentrum/hypocenter was Arcata, Bayside, Eureka (min 5000 pop). Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected).

There are an estimated 1,300,000 minor quakes in the world each year. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. In the past 24 hours, there have been sixty-seven, in the last 10 days sixty-seven, in the past 30 days sixty-eight and in the last 365 days ninety-eight earthquakes of magnitude 3.0 or greater that has occurred nearby.

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 15 km W of Petrolia, CA. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.81 mb The magnitude for the event.
Longitude -124.45583343506° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.294166564941° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 16.450000762939 km Depth of the event in kilometers.
Place 15 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 2024-12-06 09:53:03 Time when the event occurred. UTC/GMT
Updated 2024-12-06 09:54:42 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 121 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 0.08681 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.1 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 257 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 nc75097446 Id of event.
Event Code 75097446 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc75097446, A comma-separated list of event ids that are associated to an event.

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