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Minor earthquake: M2.9 quake has struck near Alva in Oklahoma



Earthquake location 36.8061S, -98.6941WA minor earthquake magnitude 2.9 (ml/mb) has occurred on Friday, 2 kilometers (1 miles) from Alva in Oklahoma. Exact location of earthquake, longitude -98.6941 West, latitude 36.8061 North, depth = 7.7 km. The earthquake occurred at a depth of 7.7 km (5 miles). The temblor was reported at 11:52:43 / 11:52 am (local time epicenter). Global time and date of event 30/10/15 / 2015-10-30 16:52:43 / October 30, 2015 @ 4:52 pm UTC/GMT. Unique identifier: us200040u9. Ids that are associated to the event: us200040u9.

Nearest cities/city/towns to hypocenter/epicentrum was Woodward (min 5000 pop). The epicenter was 75 km (46 miles) from Woodward (c. 12 100 pop). Close country/countries, United States (c. 310 233 000 pop) (That might be effected).

Each year there are an estimated 1,300,000 minor quakes in the world. Earthquakes 2.5 to 3.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days ten, in the past 30 days thirty and in the last 365 days three hundred and seventy-one earthquakes of magnitude 3.0 or greater that have been detected nearby.

Did you feel it?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 2 km W of Alva, Oklahoma.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -98.6941° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.8061° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 7.7 km Depth of the event in kilometers.
Place 2km W 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 16:52:43 Time when the event occurred. UTC/GMT
Updated 2015-10-30 17:08:39 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 Timezone offset from UTC in minutes at the event epicenter.
Felt 4 The total number of felt reports
CDI 3.6 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 131 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 0.388 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.62 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 149 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 us200040u9 Id of event.
Event Code 200040u9 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us200040u9, A comma-separated list of event ids that are associated to an event.

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