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Minor earthquake, 2.87 mag strikes near Blackwell in Oklahoma


Earthquake location 36.88428497S, -97.42197418WA minor earthquake with magnitude 2.87 (ml/mb) was reported 15 kilometers (9 miles) from Blackwell in Oklahoma on Monday. The temblor was detected at 01:57:14 / 1:57 am (local time epicenter). The epicenter of the earthquake was roughly 0.2993742526 km (0 miles) below the earth’s surface. All ids that are associated to the event: ok2019nswv. Unique identifier: ok2019nswv. Exact time and date of event in UTC/GMT: 15/07/19 / 2019-07-15 07:57:14 / July 15, 2019 @ 7:57 am. Exact location of event, depth 0.2993742526 km, -97.42197418° West, 36.88428497° North.

Nearby country/countries that might be effected, United States (c. 310 233 000 pop). The epicenter was 68 km (42 miles) from Enid (c. 49 400 pop), 36 km (22 miles) from Ponca City (c. 25 400 pop), 75 km (46 miles) from Derby (c. 22 200 pop), 39 km (24 miles) from Arkansas City (c. 12 400 pop), 55 km (34 miles) from Winfield (c. 12 300 pop). Nearest cities/city/villages to epicentrum/hypocenter was Haysville, Derby, Enid (min 5000 pop).

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

How would you describe the shaking?

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. 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: 15 km NW of Blackwell, Oklahoma.

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More information

Parameter Value Description
Magnitude 2.87 mb The magnitude for the event.
Longitude -97.42197418° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.88428497° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 0.2993742526 km Depth of the event in kilometers.
Place 15km NW 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 2019-07-15 07:57:14 Time when the event occurred. UTC/GMT
Updated 2019-07-15 07:58:39 Time when the event was most recently updated. UTC/GMT
Timezone offset -360 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 automatic 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 127 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network ok The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ok, A comma-separated list of network contributors.
Number of Stations Used 58 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1359249949 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.6212850871 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 128.8253403 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 ok2019nswv Id of event.
Event Code 2019nswv An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ok2019nswv, A comma-separated list of event ids that are associated to an event.

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