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Minor earthquake 2.8 mag, 13 km SSW of Tonkawa, Oklahoma



Earthquake location 36.5699S, -97.3886WA minor earthquake magnitude 2.8 (ml/mb) has struck on Friday, 13 kilometers (8 miles) from Tonkawa in Oklahoma. Exact location, longitude -97.3886° West, latitude 36.5699° North, depth = 1.296 km. The temblor was reported at 02:02:11 / 2:02 am (local time epicenter). Event id: us10003jrx. Ids that are associated to the earthquake: us10003jrx. Exact time and date of earthquake 02/10/15 / 2015-10-02 07:02:11 / October 2, 2015 @ 7:02 am UTC/GMT. The epicenter was at a depth of 1.296 km (1 miles).

Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected). The epicenter was 48 km (30 miles) from Enid (c. 49 400 pop), 59 km (36 miles) from Stillwater (c. 45 700 pop), 31 km (19 miles) from Ponca City (c. 25 400 pop), 63 km (39 miles) from Arkansas City (c. 12 400 pop), 77 km (48 miles) from Guthrie (c. 10 200 pop). Closest city/cities/towns to epicentrum/hypocenter was Guthrie, Arkansas City, Stillwater (min 5000 pop).

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. In the past 24 hours, there have been fifty-five, in the last 10 days sixty-six, in the past 30 days ninety-seven and in the last 365 days seven hundred and sixty-eight earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel the quake?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 13 km SSW of Tonkawa, Oklahoma. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -97.3886° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.5699° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 1.296 km Depth of the event in kilometers.
Place 13km SSW of Tonkawa, Oklahoma Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-10-02 07:02:11 Time when the event occurred. UTC/GMT
Updated 2015-10-30 08:00:58 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 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 0.37 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 53 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 us10003jrx Id of event.
Event Code 10003jrx An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10003jrx, A comma-separated list of event ids that are associated to an event.

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