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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake 3.21 mag, 21 km W of Petrolia, CA


Earthquake location 40.292835235596S, -124.52366638184WA minor earthquake with magnitude 3.21 (ml/mb) was detected on Monday, 21 kilometers (13 miles) from Petrolia in CA. The epicenter of the earthquake was roughly 20.10000038147 km (12 miles) below the earth’s surface. Exact location of event, longitude -124.52366638184 West, latitude 40.292835235596 North, depth = 20.10000038147 km. Unique identifier: nc75109526. Ids that are associated to the event: nc75109526. The 3.21-magnitude earthquake has occurred at 02:09:20 / 2:09 am (local time epicenter). Exact time and date of event in UTC/GMT: 30/12/24 / 2024-12-30 02:09:20 / December 30, 2024 @ 2:09 am.

Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected). Epicenter of the earthquake 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), 46 km (29 miles) from Fortuna (c. 11 900 pop). Closest city/cities/towns to epicentrum/hypocenter was Arcata, Bayside, Eureka (min 5000 pop).

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

Did you feel the quake?

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. 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: 21 km W of Petrolia, CA.

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More information

Parameter Value Description
Magnitude 3.21 mb The magnitude for the event.
Longitude -124.52366638184° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.292835235596° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 20.10000038147 km Depth of the event in kilometers.
Place 21 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 2024-12-30 02:09:20 Time when the event occurred. UTC/GMT
Updated 2024-12-30 02:11:24 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 159 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 35 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1691 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.11 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 239 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 nc75109526 Id of event.
Event Code 75109526 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc75109526, A comma-separated list of event ids that are associated to an event.

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