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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.2 quake has struck near Helena in Oklahoma


Earthquake location 36.6525S, -98.2315WA light earthquake with magnitude 4.2 (ml/mb) was reported 12 kilometers (7 miles) from Helena in Oklahoma on Friday. Event ids that are associated to the earthquake: us20002wp9. Id of event: us20002wp9. Date and time of earthquake in UTC/GMT: 10/07/15 / 2015-07-10 23:09:17 / July 10, 2015 @ 11:09 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 18:09:17 / 6:09 pm (local time epicenter). The epicenter was at a depth of 13.75 km (9 miles). Exact location, longitude -98.2315° West, latitude 36.6525° North, depth = 13.75 km.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Watonga, Blackwell, Enid. Country/countries that might be effected, United States (c. 310 233 000 pop). Earthquake epicenter was 43 km (26 miles) from Enid (c. 49 400 pop), 86 km (54 miles) from Blackwell (c. 7 100 pop), 91 km (57 miles) from Watonga (c. 5 100 pop).

In the past 24 hours, there have been two, in the last 10 days ten, in the past 30 days thirty-eight and in the last 365 days five hundred and fifty-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. There are an estimated 13,000 light earthquakes in the world each year.

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 12 km NNE of Helena, Oklahoma.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -98.2315° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.6525° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 13.75 km Depth of the event in kilometers.
Place 12km NNE 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 2015-07-10 23:09:17 Time when the event occurred. UTC/GMT
Updated 2015-07-10 23:21:48 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI 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 271 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 0.151 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.83 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 85 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 us20002wp9 Id of event.
Event Code 20002wp9 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20002wp9, A comma-separated list of event ids that are associated to an event.

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