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Minor earthquake, 2.9 mag has occurred near Helena in Oklahoma

Posted by admin on December 4, 2015 0 Comments

Earthquake location 36.6078S, -98.0508WA minor earthquake magnitude 2.9 (ml/mb) has occurred on Friday, 20 kilometers (12 miles) from Helena in Oklahoma. Global date and time of event UTC/GMT: 04/12/15 / 2015-12-04 22:17:58 / December 4, 2015 @ 10:17 pm. The earthquake was roughly at a depth of 8.48 km (5 miles). The temblor was detected at 16:17:58 / 4:17 pm (local time epicenter). Exact location of earthquake, -98.0508° West, 36.6078° North, depth 8.48 km. Event ids that are associated to the earthquake: us100043uc. Id of event: us100043uc.

Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Epicenter of the event was 28 km (18 miles) from Enid (c. 49 400 pop), 72 km (45 miles) from Blackwell (c. 7 100 pop), 77 km (48 miles) from Perry (c. 5 100 pop). Nearest cities/city/towns to hypocenter/epicentrum was Perry, Blackwell, Enid (min 5000 pop).

There are an estimated 1,300,000 minor quakes in the world each year. Earthquakes 2.5 to 3.0 are often felt, but only causes minor damage. In the past 24 hours, there have been three, in the last 10 days sixteen, in the past 30 days sixty and in the last 365 days six hundred and seventy-six earthquakes of magnitude 3.0 or greater that has struck near.

How would you describe the shaking?

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: 20 km ENE of Helena, Oklahoma.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -98.0508° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.6078° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 8.48 km Depth of the event in kilometers.
Place 20km ENE of Helena, Oklahoma Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-12-04 22:17:58 Time when the event occurred. UTC/GMT
Updated 2015-12-04 22:26:51 Time when the event was most recently updated. UTC/GMT
Timezone offset -360 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 0.116 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.5 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 73 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 us100043uc Id of event.
Event Code 100043uc An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us100043uc, A comma-separated list of event ids that are associated to an event.

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