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Minor earthquake 2.9 mag, 9 km NNW of Blackwell, Oklahoma


Earthquake location 36.8856S, -97.3203WA minor earthquake magnitude 2.9 (ml/mb) strikes 9 kilometers (6 miles) from Blackwell in Oklahoma on Thursday. Exact time and date of event in UTC/GMT: 07/07/16 / 2016-07-07 17:29:27 / July 7, 2016 @ 5:29 pm. Unique identifier: us100061nf. Ids that are associated to the event: us100061nf. The 2.9-magnitude earthquake has occurred at 12:29:27 / 12:29 pm (local time epicenter). The earthquake was roughly at a depth of 7.424 km (5 miles). Exact location of earthquake, longitude -97.3203 West, latitude 36.8856 North, depth = 7.424 km.

Epicenter of the event was 74 km (46 miles) from Enid (c. 49 400 pop), 29 km (18 miles) from Ponca City (c. 25 400 pop), 74 km (46 miles) from Derby (c. 22 200 pop), 32 km (20 miles) from Arkansas City (c. 12 400 pop), 49 km (30 miles) from Winfield (c. 12 300 pop). Closest city/cities/towns to epicentrum/hypocenter was Haysville, Enid, Derby (min 5000 pop). Close country/countries that might be effected, United States (c. 310 233 000 pop).

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

Did you feel it?

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 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: 9 km NNW of Blackwell, Oklahoma.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -97.3203° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.8856° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 7.424 km Depth of the event in kilometers.
Place 9km NNW of Blackwell, Oklahoma Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-07-07 17:29:27 Time when the event occurred. UTC/GMT
Updated 2016-08-04 17:11:25 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 3.1 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 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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.56 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 132 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 us100061nf Id of event.
Event Code 100061nf An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us100061nf, A comma-separated list of event ids that are associated to an event.

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