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Minor earthquake 2.9 mag, 21 km SSE of Medford, Oklahoma


Earthquake location 36.6269S, -97.641WA minor earthquake with magnitude 2.9 (ml/mb) was reported 21 kilometers (13 miles) from Medford in Oklahoma on Saturday. Exact location of event, depth 5 km, -97.641° West, 36.6269° North. Global date and time of event UTC/GMT: 30/08/15 / 2015-08-30 01:08:33 / August 30, 2015 @ 1:08 am. The 2.9-magnitude earthquake has occurred at 20:08:33 / 8:08 pm (local time epicenter). Unique identifier: us10003629. Ids that are associated to the event: us10003629. The earthquake occurred at a depth of 5 km (3 miles).

Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Epicenter of the event was 33 km (21 miles) from Enid (c. 49 400 pop), 50 km (31 miles) from Ponca City (c. 25 400 pop), 72 km (45 miles) from Arkansas City (c. 12 400 pop), 75 km (47 miles) from Wellington (c. 8 200 pop), 38 km (23 miles) from Blackwell (c. 7 100 pop). Nearest cities/city/villages to epicentrum/hypocenter was Wellington, Arkansas City, Ponca City (min 5000 pop).

Earthquakes 2.5 to 3.0 are often felt, but only causes minor damage. Every year there are an estimated 1,300,000 minor earthquakes in the world. In the past 24 hours, there have been one, in the last 10 days sixteen, in the past 30 days fourty-eight and in the last 365 days seven hundred and thirty-three earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel it?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 21 km SSE of Medford, Oklahoma.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -97.641° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.6269° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 5 km Depth of the event in kilometers.
Place 21km SSE 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 2015-08-30 01:08:33 Time when the event occurred. UTC/GMT
Updated 2015-08-30 01:19:57 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 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 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 129 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 0.284 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.55 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 50 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb_lg The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us10003629 Id of event.
Event Code 10003629 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10003629, A comma-separated list of event ids that are associated to an event.

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