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Minor earthquake, 2.85 mag was detected near Petrolia in CA


Earthquake location 40.4264984S, -125.0155029WA minor earthquake magnitude 2.85 (ml/mb) has struck on Tuesday, 63 kilometers (39 miles) from Petrolia in CA. Event id: nc73449251. Ids that are associated to the earthquake: nc73449251. The epicenter of the earthquake was roughly 0.85 km (1 miles) below the earth’s surface. Date and time of earthquake in UTC/GMT: 25/08/20 / 2020-08-25 05:58:37 / August 25, 2020 @ 5:58 am. The temblor was reported at 05:58:37 / 5:58 am (local time epicenter). Exact location of event, longitude -125.0155029 West, latitude 40.4264984 North, depth = 0.85 km.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Fortuna. Event epicenter was 75 km (47 miles) from Fortuna (c. 11 900 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 fourty-eight earthquakes of magnitude 3.0 or greater that has struck near. There are an estimated 1,300,000 minor quakes in the world each year. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

Questions or comments?

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: 63 km W of Petrolia, CA.

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More information

Parameter Value Description
Magnitude 2.85 mb The magnitude for the event.
Longitude -125.0155029° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.4264984° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 0.85 km Depth of the event in kilometers.
Place 63km 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 2020-08-25 05:58:37 Time when the event occurred. UTC/GMT
Updated 2020-08-25 06:00:40 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 30 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.5324 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.31 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 278 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 nc73449251 Id of event.
Event Code 73449251 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc73449251, A comma-separated list of event ids that are associated to an event.

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