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Minor earthquake, 2.84 mag has occurred near Petrolia in CA


Earthquake location 40.336834S, -124.4141693WA minor earthquake magnitude 2.84 (ml/mb) has occurred on Saturday, 11 kilometers (7 miles) from Petrolia in CA. The earthquake occurred at a depth of 17.18 km (11 miles) below the earth’s surface. The 2.84-magnitude earthquake has occurred at 13:10:46 / 1:10 pm (local time epicenter). Id of earthquake: nc73508600. Event ids that are associated: nc73508600. Exact location of earthquake, -124.4141693° West, 40.336834° North, depth 17.18 km. Global date and time of event UTC/GMT: 09/01/21 / 2021-01-09 13:10:46 / January 9, 2021 @ 1:10 pm.

The epicenter was 56 km (35 miles) from Eureka (c. 27 200 pop), 65 km (41 miles) from Arcata (c. 17 200 pop), 64 km (39 miles) from Bayside (c. 17 100 pop), 73 km (45 miles) from McKinleyville (c. 15 200 pop), 36 km (23 miles) from Fortuna (c. 11 900 pop). Nearest cities/city/villages to epicentrum/hypocenter was McKinleyville, Arcata, Bayside (min 5000 pop). Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected).

In the past 24 hours, there have been 0, in the last 10 days 0, in the past 30 days four and in the last 365 days fifty-two earthquakes of magnitude 3.0 or greater that was reported nearby. Each year there are an estimated 1,300,000 minor quakes in the world. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 11 km W of Petrolia, CA. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.84 mb The magnitude for the event.
Longitude -124.4141693° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.336834° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 17.18 km Depth of the event in kilometers.
Place 11km 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 2021-01-09 13:10:46 Time when the event occurred. UTC/GMT
Updated 2021-01-09 13:15:11 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 2.2 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 125 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 13 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1387 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.08 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 md The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID nc73508600 Id of event.
Event Code 73508600 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc73508600, A comma-separated list of event ids that are associated to an event.

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