Minor earthquake, 3.1 mag has occurred near Medford in Oklahoma

A minor earthquake magnitude 3.1 (ml/mb) has struck on Friday, 27 kilometers (17 miles) from Medford in Oklahoma. The epicenter was at a depth of 5 km (3 miles). Id of earthquake: us2000301d. Event ids that are associated: us2000301d. Exact location, longitude -97.6208° West, latitude 36.5804° North, depth = 5 km. The 3.1-magnitude earthquake has occurred at 23:10:33 / 11:10 pm (local time epicenter). Exact time and date of event in UTC/GMT: 25/07/15 / 2015-07-25 04:10:33 / July 25, 2015 @ 4:10 am.

Close country/countries that might be effected, United States (c. 310 233 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Guthrie, Wellington, Arkansas City (min 5000 pop). Epicenter of the earthquake was 31 km (19 miles) from Enid (c. 49 400 pop), 72 km (45 miles) from Stillwater (c. 45 700 pop), 50 km (31 miles) from Ponca City (c. 25 400 pop), 75 km (46 miles) from Arkansas City (c. 12 400 pop), 80 km (50 miles) from Guthrie (c. 10 200 pop).

There are an estimated 130,000 minor earthquakes in the world each year. In the past 24 hours, there have been two, in the last 10 days nineteen, in the past 30 days fifty-eight and in the last 365 days seven hundred and fourty-one earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 27 km SSE of Medford, Oklahoma. This information comes from the USGS Earthquake Notification Service.

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Parameter	Value	Description
Magnitude	3.1 mb	The magnitude for the event.
Longitude	-97.6208° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	36.5804° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	5 km	Depth of the event in kilometers.
Place	27km SSE of Medford, Oklahoma	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2015-07-25 04:10:33	Time when the event occurred. UTC/GMT
Updated	2015-07-25 04:23:35	Time when the event was most recently updated. UTC/GMT
Timezone offset	-300	Timezone offset from UTC in minutes at the event epicenter.
Felt	0	The total number of felt reports
CDI	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	148	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	0.301	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.85 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	44	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	us2000301d	Id of event.
Event Code	2000301d	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us2000301d,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.1 mag has occurred near Medford in Oklahoma

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