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Minor earthquake, 2.9 mag has occurred near Alva in Oklahoma


Earthquake location 36.8069S, -98.5466WA minor earthquake with magnitude 2.9 (ml/mb) was detected on Tuesday, 10 kilometers (6 miles) from Alva in Oklahoma. Exact location, longitude -98.5466° West, latitude 36.8069° North, depth = 7.121 km. The earthquake occurred at a depth of 7.121 km (4 miles). Unique identifier: us10002mp0. Ids that are associated to the event: us10002mp0. Exact time and date of earthquake 30/06/15 / 2015-06-30 21:29:27 / June 30, 2015 @ 9:29 pm UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was detected at 16:29:27 / 4:29 pm (local time epicenter).

Earthquake epicenter was 75 km (47 miles) from Enid (c. 49 400 pop). Nearest cities/city/towns to hypocenter/epicentrum was Enid (min 5000 pop). Nearby country/countries that might be effected, United States (c. 310 233 000 pop).

In the past 24 hours, there have been 0, in the last 10 days eleven, in the past 30 days thirty-five and in the last 365 days four hundred and thirty-three earthquakes of magnitude 3.0 or greater that has struck near. There are an estimated 1,300,000 minor quakes in the world each year.

Did you feel it?

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: 10 km E of Alva, Oklahoma. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -98.5466° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.8069° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 7.121 km Depth of the event in kilometers.
Place 10km E 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 2015-06-30 21:29:27 Time when the event occurred. UTC/GMT
Updated 2015-06-30 22:54:47 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 Timezone offset from UTC in minutes at the event epicenter.
Felt 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 129 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 0.48 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 135 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 us10002mp0 Id of event.
Event Code 10002mp0 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10002mp0, A comma-separated list of event ids that are associated to an event.

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