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Minor earthquake, 2.9 mag strikes near Medford in Oklahoma

Earthquake location 36.6689S, -97.741WA minor earthquake with magnitude 2.9 (ml/mb) was detected on Friday, 15 kilometers (9 miles) from Medford in Oklahoma. Event id: us20003h8f. Ids that are associated to the earthquake: us20003h8f. Exact time and date of earthquake 04/09/15 / 2015-09-04 22:03:00 / September 4, 2015 @ 10:03 pm UTC/GMT. Exact location of earthquake, -97.741° West, 36.6689° North, depth 6.995 km. The temblor was reported at 17:03:00 / 5:03 pm (local time epicenter). The earthquake occurred at a depth of 6.995 km (4 miles).

Event epicenter was 33 km (20 miles) from Enid (c. 49 400 pop), 59 km (36 miles) from Ponca City (c. 25 400 pop), 76 km (47 miles) from Arkansas City (c. 12 400 pop), 74 km (46 miles) from Wellington (c. 8 200 pop), 44 km (27 miles) from Blackwell (c. 7 100 pop). Close country/countries, United States (c. 310 233 000 pop) (That might be effected). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Arkansas City, Wellington, Ponca City.

There are an estimated 1,300,000 minor quakes in the world each year. Earthquakes 2.5 to 3.0 are often felt, but only causes minor damage. In the past 24 hours, there have been thirty-four, in the last 10 days fourty-seven, in the past 30 days seventy-seven and in the last 365 days seven hundred and fifty-nine earthquakes of magnitude 3.0 or greater that have been detected nearby.

How would you describe the shaking?

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. 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: 15 km S of Medford, Oklahoma.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -97.741° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.6689° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 6.995 km Depth of the event in kilometers.
Place 15km S 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 2015-09-04 22:03:00 Time when the event occurred. UTC/GMT
Updated 2015-09-27 03:46:04 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 Timezone offset from UTC in minutes at the event epicenter.
Felt 2 The total number of felt reports
CDI 3.4 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 130 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 0.67 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 44 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 us20003h8f Id of event.
Event Code 20003h8f An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003h8f, A comma-separated list of event ids that are associated to an event.

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