Minor earthquake: M3.8 quake has struck near Helena in Oklahoma

A minor earthquake magnitude 3.8 (ml/mb) strikes 16 kilometers (10 miles) from Helena in Oklahoma on Friday. Event ids that are associated to the earthquake: us20002y4p. Id of event: us20002y4p. Exact time and date of event in UTC/GMT: 17/07/15 / 2015-07-17 12:30:38 / July 17, 2015 @ 12:30 pm. Exact location of event, longitude -98.4412 West, latitude 36.5041 North, depth = 3.42 km. The temblor was reported at 07:30:38 / 7:30 am (local time epicenter). The earthquake occurred at a depth of 3.42 km (2 miles).

Close country/countries, United States (c. 310 233 000 pop) (That might be effected). Epicenter of the earthquake was 52 km (32 miles) from Enid (c. 49 400 pop), 85 km (53 miles) from Woodward (c. 12 100 pop), 73 km (46 miles) from Watonga (c. 5 100 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Woodward, Watonga, Enid.

Each year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been one, in the last 10 days nine, in the past 30 days thirty-four and in the last 365 days five hundred and twenty-three earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 3.0 to 4.0 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 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: 16 km WSW of Helena, Oklahoma.

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Parameter	Value	Description
Magnitude	3.8 mb	The magnitude for the event.
Longitude	-98.4412° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	36.5041° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	3.42 km	Depth of the event in kilometers.
Place	16km WSW 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	2015-07-17 12:30:38	Time when the event occurred. UTC/GMT
Updated	2015-07-17 12:43:50	Time when the event was most recently updated. UTC/GMT
Timezone offset	-300	Timezone offset from UTC in minutes at the event epicenter.
Felt	1	The total number of felt reports
CDI	2	The maximum reported intensity for the event.
MMI	4.41	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	222	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	0.352	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.54 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	57	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	us20002y4p	Id of event.
Event Code	20002y4p	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us20002y4p,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3.8 quake has struck near Helena in Oklahoma

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