Minor earthquake: M3 quake has struck near Alva in Oklahoma

A minor earthquake with magnitude 3 (ml/mb) was reported 6 kilometers (4 miles) from Alva in Oklahoma on Friday. The temblor was detected at 16:37:59 / 4:37 pm (local time epicenter). Exact location of event, depth 5 km, -98.6647° West, 36.7453° North. Date and time of earthquake in UTC/GMT: 30/10/15 / 2015-10-30 21:37:59 / October 30, 2015 @ 9:37 pm. The earthquake was roughly at a depth of 5 km (3 miles). Event id: us200040xy. Ids that are associated to the earthquake: us200040xy.

Epicenter of the earthquake was 73 km (46 miles) from Woodward (c. 12 100 pop). Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected). Closest city/cities/towns to epicentrum/hypocenter was Woodward (min 5000 pop).

In the past 24 hours, there have been two, in the last 10 days eleven, in the past 30 days thirty-two and in the last 365 days three hundred and ninety-seven earthquakes of magnitude 3.0 or greater that was reported nearby. There are an estimated 130,000 minor quakes in the world each year. 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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 6 km S of Alva, Oklahoma.

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Parameter	Value	Description
Magnitude	3 mb	The magnitude for the event.
Longitude	-98.6647° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	36.7453° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	5 km	Depth of the event in kilometers.
Place	6km S of Alva, Oklahoma	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2015-10-30 21:37:59	Time when the event occurred. UTC/GMT
Updated	2015-10-30 22:02:07	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	139	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	0.47 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	43	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	us200040xy	Id of event.
Event Code	200040xy	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us200040xy,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3 quake has struck near Alva in Oklahoma

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