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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake 4 mag, 20 km ENE of Helena, Oklahoma


Earthquake location 36.6385S, -98.0775WA light earthquake with magnitude 4 (ml/mb) was reported 20 kilometers (12 miles) from Helena in Oklahoma on Friday. The temblor was detected at 00:27:10 / 12:27 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The epicenter was at a depth of 10.55 km (7 miles). Exact location of earthquake, longitude -98.0775 West, latitude 36.6385 North, depth = 10.55 km. Event id: us10006d79. Ids that are associated to the earthquake: us10006d79. Exact time and date of earthquake 12/08/16 / 2016-08-12 05:27:10 / August 12, 2016 @ 5:27 am UTC/GMT.

Close country/countries, United States (c. 310 233 000 pop) (That might be effected). Nearest cities/city/towns to hypocenter/epicentrum was Ponca City, Perry, Blackwell (min 5000 pop). Epicenter of the earthquake was 32 km (20 miles) from Enid (c. 49 400 pop), 89 km (55 miles) from Ponca City (c. 25 400 pop), 73 km (45 miles) from Blackwell (c. 7 100 pop), 81 km (50 miles) from Perry (c. 5 100 pop).

Every year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been one, in the last 10 days eight, in the past 30 days eighteen and in the last 365 days four hundred and thirty-two earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Questions or comments?

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. 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 4 mb The magnitude for the event.
Longitude -98.0775° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.6385° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10.55 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 2016-08-12 05:27:10 Time when the event occurred. UTC/GMT
Updated 2016-08-12 05:58:28 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 Timezone offset from UTC in minutes at the event epicenter.
Felt 14 The total number of felt reports
CDI 6.2 The maximum reported intensity for the event.
MMI 4.65 The maximum estimated instrumental intensity for the event.
Alert Level green 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 255 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 0.153 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.29 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 49 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 us10006d79 Id of event.
Event Code 10006d79 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10006d79, A comma-separated list of event ids that are associated to an event.

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