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Minor earthquake, 2.84 mag was detected near Petrolia in CA


Earthquake location 40.301834106445S, -124.50749969482WA minor earthquake with magnitude 2.84 (ml/mb) was detected on Wednesday, 19 kilometers (12 miles) from Petrolia in CA. The earthquake occurred at a depth of 10.619999885559 km (7 miles). The temblor was picked up at 17:37:36 / 5:37 pm (local time epicenter). Exact location of event, longitude -124.50749969482 West, latitude 40.301834106445 North, depth = 10.619999885559 km. Event id: nc75104931. Ids that are associated to the earthquake: nc75104931. Global date and time of event UTC/GMT: 18/12/24 / 2024-12-18 17:37:36 / December 18, 2024 @ 5:37 pm.

Event epicenter was 63 km (39 miles) from Eureka (c. 27 200 pop), 72 km (45 miles) from Arcata (c. 17 200 pop), 71 km (44 miles) from Bayside (c. 17 100 pop), 44 km (28 miles) from Fortuna (c. 11 900 pop). Close country/countries that might be effected, United States (c. 310 233 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Arcata, Bayside, Eureka (min 5000 pop).

Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. In the past 24 hours, there have been four, in the last 10 days fourty-nine, in the past 30 days one hundred and sixty and in the last 365 days one hundred and ninety-one earthquakes of magnitude 3.0 or greater that has struck near. Each year there are an estimated 1,300,000 minor earthquakes in the world.

How would you describe the shaking?

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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 19 km W of Petrolia, CA.

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More information

Parameter Value Description
Magnitude 2.84 mb The magnitude for the event.
Longitude -124.50749969482° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.301834106445° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10.619999885559 km Depth of the event in kilometers.
Place 19 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 2024-12-18 17:37:36 Time when the event occurred. UTC/GMT
Updated 2024-12-18 17:39:16 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 124 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 23 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1268 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 268 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 nc75104931 Id of event.
Event Code 75104931 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc75104931, A comma-separated list of event ids that are associated to an event.

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