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Light earthquake: M4.6 quake has struck near Medford in Oklahoma

Posted by admin on November 20, 2015 2 Comments

A light earthquake magnitude 4.6 (ml/mb) has occurred on Friday, 11 kilometers (7 miles) from Medford in Oklahoma. The temblor was detected at 16:40:40 / 4:40 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 20/11/15 / 2015-11-20 22:40:40 / November 20, 2015 @ 10:40 pm UTC/GMT. Exact location of event, depth 3.05 km, -97.7643° West, 36.9039° North. Id of earthquake: us10003zyc. Event ids that are associated: us10003zyc. The earthquake occurred at a depth of 3.05 km (2 miles).

Country/countries that might be effected, United States (c. 310 233 000 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Wichita, Derby, Haysville. The epicenter was 95 km (59 miles) from Wichita (c. 382 400 pop), 57 km (36 miles) from Enid (c. 49 400 pop), 64 km (40 miles) from Ponca City (c. 25 400 pop), 84 km (52 miles) from Derby (c. 22 200 pop), 67 km (42 miles) from Arkansas City (c. 12 400 pop), 78 km (48 miles) from Winfield (c. 12 300 pop), 82 km (51 miles) from Haysville (c. 10 800 pop).

In the past 24 hours, there have been five, in the last 10 days eighteen, in the past 30 days fifty-two and in the last 365 days five hundred and ninety-two earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light quakes in the world each year.

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: 11 km NNW of Medford, Oklahoma.

More information

Parameter	Value	Description
Magnitude	4.6 mb	The magnitude for the event.
Longitude	-97.7643° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	36.9039° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	3.05 km	Depth of the event in kilometers.
Place	11km NNW 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	2015-11-20 22:40:40	Time when the event occurred. UTC/GMT
Updated	2015-11-20 22:58:05	Time when the event was most recently updated. UTC/GMT
Timezone offset	-360	Timezone offset from UTC in minutes at the event epicenter.
Felt	103	The total number of felt reports
CDI	4.5	The maximum reported intensity for the event.
MMI	5.69	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	372	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	0.092	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.96 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	27	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	us10003zyc	Id of event.
Event Code	10003zyc	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us10003zyc,	A comma-separated list of event ids that are associated to an event.

2 Comments

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Steve Hobbs

Tulsa, OK (near river); shook dishes in china cabinet for 8-10 seconds

November 20, 2015

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Mike Stewart

THe quake took place at Renfrow, Oklahoma at 20 minutes past 4. Your time is off.

November 20, 2015

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Light earthquake: M4.6 quake has struck near Medford in Oklahoma

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Steve Hobbs

Mike Stewart

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