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Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.1 mag strikes near Petrolia in CA


Earthquake location 40.375666666667S, -124.81683333333WA minor earthquake magnitude 3.1 (ml/mb) has occurred on Thursday, 45 kilometers (28 miles) from Petrolia in CA. The 3.1-magnitude earthquake was detected at 19:15:06 / 7:15 pm (local time epicenter). The epicenter of the earthquake was roughly 20.84 km (13 miles) below the earth’s surface. Date and time of earthquake in UTC/GMT: 05/12/24 / 2024-12-05 19:15:06 / December 5, 2024 @ 7:15 pm. Exact location of earthquake, longitude -124.81683333333 West, latitude 40.375666666667 North, depth = 20.84 km. All ids that are associated to the event: nc75095976. Unique identifier: nc75095976.

Nearest cities/city/towns to hypocenter/epicentrum was Eureka, Fortuna (min 5000 pop). Epicenter of the earthquake was 73 km (45 miles) from Eureka (c. 27 200 pop), 61 km (38 miles) from Fortuna (c. 11 900 pop). Country/countries that might be effected, United States (c. 310 233 000 pop).

In the past 24 hours, there have been one hundred and fourty-six, in the last 10 days one hundred and fifty-one, in the past 30 days one hundred and fifty-three and in the last 365 days one hundred and eighty-three earthquakes of magnitude 3.0 or greater that has occurred nearby. There are an estimated 130,000 minor earthquakes in the world each year. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

Did you feel anything?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 45 km WNW of Petrolia, CA.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -124.81683333333° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.375666666667° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 20.84 km Depth of the event in kilometers.
Place 45 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 2024-12-05 19:15:06 Time when the event occurred. UTC/GMT
Updated 2024-12-14 23:59:50 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 reviewed 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 148 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 68 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.3729 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.25 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 242 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 nc75095976 Id of event.
Event Code 75095976 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc75095976, A comma-separated list of event ids that are associated to an event.

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