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Minor earthquake, 2.8 mag was detected near Medford in Oklahoma



Earthquake location 36.6949S, -97.9897WA minor earthquake with magnitude 2.8 (ml/mb) was detected on Monday, 26 kilometers (16 miles) from Medford in Oklahoma. The 2.8-magnitude earthquake has occurred at 09:25:38 / 9:25 am (local time epicenter). Event id: us100048le. Ids that are associated to the earthquake: us100048le. Global time and date of event 21/12/15 / 2015-12-21 15:25:38 / December 21, 2015 @ 3:25 pm UTC/GMT. The earthquake occurred at a depth of 7.134 km (4 miles) below the earth’s surface. Exact location of earthquake, longitude -97.9897 West, latitude 36.6949 North, depth = 7.134 km.

The epicenter was 35 km (22 miles) from Enid (c. 49 400 pop), 64 km (40 miles) from Blackwell (c. 7 100 pop). Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Blackwell, Enid.

In the past 24 hours, there have been fifty-five, in the last 10 days sixty-two, in the past 30 days ninety and in the last 365 days six hundred and ninety-nine earthquakes of magnitude 3.0 or greater that have been detected in the same area. Each 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.

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 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: 26 km WSW of Medford, Oklahoma.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -97.9897° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.6949° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 7.134 km Depth of the event in kilometers.
Place 26km WSW of Medford, Oklahoma Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-12-21 15:25:38 Time when the event occurred. UTC/GMT
Updated 2016-01-18 20:37:15 Time when the event was most recently updated. UTC/GMT
Timezone offset -360 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 reviewed 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 121 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.5 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 71 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 us100048le Id of event.
Event Code 100048le An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us100048le, A comma-separated list of event ids that are associated to an event.

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