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Minor earthquake: M2.8 quake has struck near Tonkawa in Oklahoma

Posted by admin on October 29, 2016 0 Comments

Earthquake location 36.5567S, -97.4034WA minor earthquake magnitude 2.8 (ml/mb) strikes 15 kilometers (9 miles) from Tonkawa in Oklahoma on Saturday. Exact location, longitude -97.4034° West, latitude 36.5567° North, depth = 3.28 km. Global date and time of event UTC/GMT: 29/10/16 / 2016-10-29 11:44:53 / October 29, 2016 @ 11:44 am. The 2.8-magnitude earthquake was detected at 06:44:53 / 6:44 am (local time epicenter). The epicenter was at a depth of 3.28 km (2 miles). Event id: us100072y7. Ids that are associated to the earthquake: us100072y7.

Country/countries that might be effected, United States (c. 310 233 000 pop). The epicenter was 46 km (29 miles) from Enid (c. 49 400 pop), 58 km (36 miles) from Stillwater (c. 45 700 pop), 33 km (20 miles) from Ponca City (c. 25 400 pop), 65 km (40 miles) from Arkansas City (c. 12 400 pop), 75 km (47 miles) from Guthrie (c. 10 200 pop). Closest city/cities/towns to epicentrum/hypocenter was Guthrie, Arkansas City, Stillwater (min 5000 pop).

There are an estimated 1,300,000 minor quakes in the world each year. In the past 24 hours, there have been three, in the last 10 days ten, in the past 30 days twenty-two and in the last 365 days three hundred and eighty-one earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

Questions or comments?

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 SSW of Tonkawa, Oklahoma.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -97.4034° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.5567° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 3.28 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 2016-10-29 11:44:53 Time when the event occurred. UTC/GMT
Updated 2016-10-29 12:05:19 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 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 0.169 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.42 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 88 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 us100072y7 Id of event.
Event Code 100072y7 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us100072y7, A comma-separated list of event ids that are associated to an event.

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