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Minor earthquake, 2.8 mag strikes near Union City in Oklahoma

Earthquake location 35.3747S, -98.1213WA minor earthquake magnitude 2.8 (ml/mb) has occurred on Saturday, 16 kilometers (10 miles) from Union City in Oklahoma. The temblor was detected at 00:02:14 / 12:02 am (local time epicenter). Event id: us2000haup. Ids that are associated to the earthquake: us2000haup. The earthquake occurred at a depth of 7.903 km (5 miles). Date and time of earthquake in UTC/GMT: 08/09/18 / 2018-09-08 06:02:14 / September 8, 2018 @ 6:02 am. Exact location of earthquake, -98.1213° West, 35.3747° North, depth 7.903 km.

Close country/countries, United States (c. 310 233 000 pop) (That might be effected). Earthquake epicenter was 56 km (35 miles) from Oklahoma City (c. 580 000 pop), 64 km (40 miles) from Norman (c. 110 900 pop), 66 km (41 miles) from Edmond (c. 81 400 pop), 58 km (36 miles) from Moore (c. 55 100 pop), 66 km (41 miles) from Midwest City (c. 54 400 pop). Nearest cities/city/towns to hypocenter/epicentrum was Noble, Midwest City, Edmond (min 5000 pop).

In the past 24 hours, there have been four, in the last 10 days four, in the past 30 days four and in the last 365 days sixty-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. 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. 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: 16 km W of Union City, Oklahoma.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -98.1213° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 35.3747° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 7.903 km Depth of the event in kilometers.
Place 16km W of Union City, Oklahoma Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-09-08 06:02:14 Time when the event occurred. UTC/GMT
Updated 2018-10-03 07:32:06 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 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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.48 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 54 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 us2000haup Id of event.
Event Code 2000haup An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000haup, A comma-separated list of event ids that are associated to an event.

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