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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.2 quake has struck near Petrolia in CA


Earthquake location 40.372001647949S, -124.95417022705WA light earthquake magnitude 4.2 (ml/mb) has struck on Sunday, 57 kilometers (35 miles) from Petrolia in CA. The temblor was picked up at 16:23:14 / 4:23 pm (local time epicenter). The epicenter was at a depth of -0.070000000298023 km (-0 miles). Exact location of event, longitude -124.95417022705 West, latitude 40.372001647949 North, depth = -0.070000000298023 km. Global date and time of event UTC/GMT: 08/12/24 / 2024-12-08 16:23:14 / December 8, 2024 @ 4:23 pm. All ids that are associated to the event: ew1733675000, nc75099566, us7000nx2q. Unique identifier: nc75099566. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Closest city/cities/towns to epicentrum/hypocenter was Arcata, Bayside, Eureka (min 5000 pop). The epicenter was 82 km (51 miles) from Eureka (c. 27 200 pop), 92 km (57 miles) from Arcata (c. 17 200 pop), 92 km (57 miles) from Bayside (c. 17 100 pop), 72 km (45 miles) from Fortuna (c. 11 900 pop). Country/countries that might be effected, United States (c. 310 233 000 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light quakes in the world each year. In the past 24 hours, there have been eight, in the last 10 days one hundred and twelve, in the past 30 days one hundred and thirteen and in the last 365 days one hundred and fourty-five earthquakes of magnitude 3.0 or greater that have been detected nearby.

Questions or comments?

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. 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: 57 km WNW of Petrolia, CA.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -124.95417022705° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.372001647949° North Decimal degrees latitude. Negative values for southern latitudes.
Depth -0.070000000298023 km Depth of the event in kilometers.
Place 57 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 2024-12-08 16:23:14 Time when the event occurred. UTC/GMT
Updated 2024-12-08 16:31:11 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt 2 The total number of felt reports
CDI 2.7 The maximum reported intensity for the event.
MMI 2.841 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 272 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 ,ew,nc,us, A comma-separated list of network contributors.
Number of Stations Used 130 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.4749 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.2 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 233 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 nc75099566 Id of event.
Event Code 75099566 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ew1733675000,nc75099566,us7000nx2q, A comma-separated list of event ids that are associated to an event.

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