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Minor earthquake, 2.88 mag strikes near Jefferson in Oklahoma

Earthquake location 36.69722748S, -97.68117523WA minor earthquake with magnitude 2.88 (ml/mb) was reported 10 kilometers (6 miles) from Jefferson in Oklahoma on Friday. All ids that are associated to the event: ok2021dlvw. Unique identifier: ok2021dlvw. The epicenter was at a depth of 5 km (3 miles). The temblor was picked up at 04:08:53 / 4:08 am (local time epicenter). Global date and time of event UTC/GMT: 19/02/21 / 2021-02-19 04:08:53 / February 19, 2021 @ 4:08 am. Exact location of earthquake, longitude -97.68117523 West, latitude 36.69722748 North, depth = 5 km.

Close country/countries that might be effected, United States (c. 310 233 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Arkansas City, Wellington, Perry (min 5000 pop). Earthquake epicenter was 38 km (24 miles) from Enid (c. 49 400 pop), 53 km (33 miles) from Ponca City (c. 25 400 pop), 70 km (44 miles) from Arkansas City (c. 12 400 pop), 69 km (43 miles) from Wellington (c. 8 200 pop), 37 km (23 miles) from Blackwell (c. 7 100 pop).

In the past 24 hours, there have been 0, in the last 10 days one, in the past 30 days six and in the last 365 days fourty-three 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. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

Questions or comments?

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 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: 10 km ESE of Jefferson, Oklahoma.

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More information

Parameter Value Description
Magnitude 2.88 mb The magnitude for the event.
Longitude -97.68117523° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.69722748° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 5 km Depth of the event in kilometers.
Place 10 km ESE of Jefferson, Oklahoma Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2021-02-19 04:08:53 Time when the event occurred. UTC/GMT
Updated 2021-02-19 04:15:28 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 128 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network ok The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ok, A comma-separated list of network contributors.
Number of Stations Used 75 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.2103097439 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.7810375276 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 52.96037102 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 ok2021dlvw Id of event.
Event Code 2021dlvw An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ok2021dlvw, A comma-separated list of event ids that are associated to an event.

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