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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.21 mag was detected near Petrolia in CA


Earthquake location 40.280166625977S, -124.2636642456WA light earthquake with magnitude 4.21 (ml/mb) was reported 5 kilometers (3 miles) from Petrolia in CA on Thursday. Exact location, longitude -124.2636642456° West, latitude 40.280166625977° North, depth = 9.1899995803833 km. The 4.21-magnitude earthquake was detected at 06:59:50 / 6:59 am (local time epicenter). Global time and date of event 24/10/24 / 2024-10-24 06:59:50 / October 24, 2024 @ 6:59 am UTC/GMT. Unique identifier: nc75077991. Ids that are associated to the event: nc75077991, ew1729753190. The earthquake was roughly at a depth of 9.1899995803833 km (6 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Epicenter of the earthquake was 59 km (36 miles) from Eureka (c. 27 200 pop), 67 km (42 miles) from Arcata (c. 17 200 pop), 65 km (40 miles) from Bayside (c. 17 100 pop), 75 km (47 miles) from McKinleyville (c. 15 200 pop), 36 km (23 miles) from Fortuna (c. 11 900 pop). Nearest cities/city/towns to hypocenter/epicentrum was McKinleyville, Arcata, Bayside (min 5000 pop). Close country/countries, United States (c. 310 233 000 pop) (That might be effected).

Each year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been four, in the last 10 days five, in the past 30 days seven and in the last 365 days twenty-three earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel it?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city 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: 5 km S of Petrolia, CA.

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More information

Parameter Value Description
Magnitude 4.21 mb The magnitude for the event.
Longitude -124.2636642456° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.280166625977° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 9.1899995803833 km Depth of the event in kilometers.
Place 5 km S 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 2024-10-24 06:59:50 Time when the event occurred. UTC/GMT
Updated 2024-10-24 07:04:26 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 3.67 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 273 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,ew, A comma-separated list of network contributors.
Number of Stations Used 8 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.07788 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.09 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 ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID nc75077991 Id of event.
Event Code 75077991 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc75077991,ew1729753190, A comma-separated list of event ids that are associated to an event.

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