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Minor earthquake: M2.85 quake has struck near Petrolia in CA

Earthquake location 40.2886658S, -124.5948334WA minor earthquake magnitude 2.85 (ml/mb) has occurred on Wednesday, 27 kilometers (17 miles) from Petrolia in CA. Exact location of event, depth 16.95 km, -124.5948334° West, 40.2886658° North. The epicenter of the earthquake was roughly 16.95 km (11 miles) below the earth’s surface. The temblor was picked up at 21:26:55 / 9:26 pm (local time epicenter). Event id: nc73533571. Ids that are associated to the earthquake: nc73533571. Global date and time of event UTC/GMT: 10/03/21 / 2021-03-10 21:26:55 / March 10, 2021 @ 9:26 pm.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Bayside, Eureka, Fortuna. The epicenter was 68 km (42 miles) from Eureka (c. 27 200 pop), 76 km (47 miles) from Bayside (c. 17 100 pop), 51 km (31 miles) from Fortuna (c. 11 900 pop). Nearby country/countries that might be effected, United States (c. 310 233 000 pop).

Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. In the past 24 hours, there have been 0, in the last 10 days four, in the past 30 days five and in the last 365 days fourty-seven earthquakes of magnitude 3.0 or greater that have been detected in the same area. Every year there are an estimated 1,300,000 minor earthquakes in the world.

Did you feel anything?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city 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: 27 km W of Petrolia, CA.

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More information

Parameter Value Description
Magnitude 2.85 mb The magnitude for the event.
Longitude -124.5948334° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.2886658° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 16.95 km Depth of the event in kilometers.
Place 27km 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 2021-03-10 21:26:55 Time when the event occurred. UTC/GMT
Updated 2021-03-10 21:28:32 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 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 20 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1929 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.17 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 237 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 nc73533571 Id of event.
Event Code 73533571 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc73533571, A comma-separated list of event ids that are associated to an event.

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