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Minor earthquake, 2.8 mag was detected near Hennessey in Oklahoma

Earthquake location 36.1412S, -97.668WA minor earthquake with magnitude 2.8 (ml/mb) was reported 21 kilometers (13 miles) from Hennessey in Oklahoma on Saturday. The temblor was detected at 02:10:17 / 2:10 am (local time epicenter). Global time and date of event 30/12/17 / 2017-12-30 08:10:17 / December 30, 2017 @ 8:10 am UTC/GMT. The earthquake occurred at a depth of 2.08 km (1 miles). Exact location of earthquake, -97.668° West, 36.1412° North, depth 2.08 km. All ids that are associated to the event: us1000by1w. Unique identifier: us1000by1w.

Nearest cities/city/towns to hypocenter/epicentrum was Oklahoma City, Watonga, El Reno (min 5000 pop). Earthquake epicenter was 76 km (47 miles) from Oklahoma City (c. 580 000 pop), 57 km (35 miles) from Edmond (c. 81 400 pop), 34 km (21 miles) from Enid (c. 49 400 pop), 55 km (34 miles) from Stillwater (c. 45 700 pop), 71 km (44 miles) from Yukon (c. 22 700 pop). Nearby country/countries that might be effected, United States (c. 310 233 000 pop).

In the past 24 hours, there have been 0, in the last 10 days four, in the past 30 days thirteen and in the last 365 days one hundred and seventy-six earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. Each year there are an estimated 1,300,000 minor quakes in the world.

Did you feel it?

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: 21 km E of Hennessey, Oklahoma.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -97.668° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.1412° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 2.08 km Depth of the event in kilometers.
Place 21km E of Hennessey, Oklahoma Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-12-30 08:10:17 Time when the event occurred. UTC/GMT
Updated 2017-12-30 08:21:07 Time when the event was most recently updated. UTC/GMT
Timezone offset -360 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 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 0.369 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.25 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 28 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 us1000by1w Id of event.
Event Code 1000by1w An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000by1w, A comma-separated list of event ids that are associated to an event.

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