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Minor earthquake 2.9 mag, 12 km NW of Stillwater, Oklahoma


Earthquake location 36.1966S, -97.1597WA minor earthquake magnitude 2.9 (ml/mb) has occurred on Monday, 12 kilometers (7 miles) from Stillwater in Oklahoma. The temblor was picked up at 06:45:00 / 6:45 am (local time epicenter). The epicenter of the earthquake was roughly 2.239 km (1 miles) below the earth’s surface. Exact location of event, longitude -97.1597 West, latitude 36.1966 North, depth = 2.239 km. Event id: us10003im1. Ids that are associated to the earthquake: us10003im1. Global date and time of event UTC/GMT: 28/09/15 / 2015-09-28 11:45:00 / September 28, 2015 @ 11:45 am.

Close country/countries that might be effected, United States (c. 310 233 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Blackwell, Enid, Edmond (min 5000 pop). Earthquake epicenter was 67 km (42 miles) from Edmond (c. 81 400 pop), 68 km (42 miles) from Enid (c. 49 400 pop), 13 km (8 miles) from Stillwater (c. 45 700 pop), 57 km (36 miles) from Ponca City (c. 25 400 pop), 43 km (26 miles) from Guthrie (c. 10 200 pop).

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

Did you feel it?

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: 12 km NW of Stillwater, Oklahoma.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -97.1597° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.1966° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 2.239 km Depth of the event in kilometers.
Place 12km NW of Stillwater, Oklahoma Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-09-28 11:45:00 Time when the event occurred. UTC/GMT
Updated 2015-09-28 21:11:47 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 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 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 0.66 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 55 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 us10003im1 Id of event.
Event Code 10003im1 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10003im1, A comma-separated list of event ids that are associated to an event.

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