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Minor earthquake 2.9 mag, 15 km SSW of Tonkawa, Oklahoma

Posted by admin on September 21, 2015 0 Comments

Earthquake location 36.556S, -97.383WA minor earthquake magnitude 2.9 (ml/mb) strikes 15 kilometers (9 miles) from Tonkawa in Oklahoma on Monday. Event ids that are associated to the earthquake: us20003me2. Id of event: us20003me2. The epicenter was at a depth of 5 km (3 miles). Exact location of event, depth 5 km, -97.383° West, 36.556° North. Exact time and date of event in UTC/GMT: 21/09/15 / 2015-09-21 08:58:36 / September 21, 2015 @ 8:58 am. The temblor was picked up at 03:58:36 / 3:58 am (local time epicenter).

Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Guthrie, Arkansas City, Stillwater. Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Event epicenter was 48 km (30 miles) from Enid (c. 49 400 pop), 57 km (35 miles) from Stillwater (c. 45 700 pop), 31 km (20 miles) from Ponca City (c. 25 400 pop), 64 km (40 miles) from Arkansas City (c. 12 400 pop), 75 km (47 miles) from Guthrie (c. 10 200 pop).

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

Did you feel the quake?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 15 km SSW of Tonkawa, Oklahoma. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -97.383° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.556° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 5 km Depth of the event in kilometers.
Place 15km 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 2015-09-21 08:58:36 Time when the event occurred. UTC/GMT
Updated 2015-09-21 09:19:31 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 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 0.244 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.6 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 33 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 us20003me2 Id of event.
Event Code 20003me2 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003me2, A comma-separated list of event ids that are associated to an event.

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