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Minor earthquake 2.9 mag, 4 km SE of Tonkawa, Oklahoma


Earthquake location 36.6481S, -97.2718WA minor earthquake magnitude 2.9 (ml/mb) has occurred on Tuesday, 4 kilometers (2 miles) from Tonkawa in Oklahoma. Id of earthquake: us10004xr7. Event ids that are associated: us10004xr7. Exact location of event, depth 1.37 km, -97.2718° West, 36.6481° North. Exact time and date of event in UTC/GMT: 15/03/16 / 2016-03-15 10:12:45 / March 15, 2016 @ 10:12 am. The temblor was picked up at 05:12:45 / 5:12 am (local time epicenter). The epicenter of the earthquake was roughly 1.37 km (1 miles) below the earth’s surface.

The epicenter was 61 km (38 miles) from Enid (c. 49 400 pop), 62 km (39 miles) from Stillwater (c. 45 700 pop), 18 km (11 miles) from Ponca City (c. 25 400 pop), 50 km (31 miles) from Arkansas City (c. 12 400 pop), 70 km (44 miles) from Winfield (c. 12 300 pop). Closest city/cities/towns to epicentrum/hypocenter was Winfield, Wellington, Stillwater (min 5000 pop). Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected).

In the past 24 hours, there have been 0, in the last 10 days nine, in the past 30 days twenty-six and in the last 365 days six hundred and fourteen 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 3.0 are often felt, but only causes minor damage.

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. 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: 4 km SE of Tonkawa, Oklahoma.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -97.2718° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.6481° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 1.37 km Depth of the event in kilometers.
Place 4km SE 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 2016-03-15 10:12:45 Time when the event occurred. UTC/GMT
Updated 2016-03-15 10:53:00 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 Timezone offset from UTC in minutes at the event epicenter.
Felt 1 The total number of felt reports
CDI 2 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 0.121 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.28 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 mb_lg The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us10004xr7 Id of event.
Event Code 10004xr7 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10004xr7, A comma-separated list of event ids that are associated to an event.

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