Minor earthquake: M3.57 quake has struck near Helena in Oklahoma

A minor earthquake magnitude 3.57 (ml/mb) has occurred on Friday, 22 kilometers (14 miles) from Helena in Oklahoma. The 3.57-magnitude earthquake has occurred at 04:56:19 / 4:56 am (local time epicenter). Exact location of earthquake, longitude -98.13776398 West, latitude 36.37224197 North, depth = 1.637489796 km. Global time and date of event 02/08/19 / 2019-08-02 10:56:19 / August 2, 2019 @ 10:56 am UTC/GMT. The earthquake was roughly at a depth of 1.637489796 km (1 miles). Unique identifier: ok2019ozzu. Ids that are associated to the event: ok2019ozzu.

Nearest cities/city/towns to hypocenter/epicentrum was Guthrie, Perry, Watonga (min 5000 pop). Earthquake epicenter was 23 km (15 miles) from Enid (c. 49 400 pop), 84 km (52 miles) from Guthrie (c. 10 200 pop), 77 km (48 miles) from Perry (c. 5 100 pop), 64 km (40 miles) from Watonga (c. 5 100 pop). Close country/countries that might be effected, United States (c. 310 233 000 pop).

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days ten, in the past 30 days thirteen and in the last 365 days seventy-two earthquakes of magnitude 3.0 or greater that have been detected nearby. Every year there are an estimated 130,000 minor earthquakes in the world.

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 22 km SSE of Helena, Oklahoma.

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Parameter	Value	Description
Magnitude	3.57 mb	The magnitude for the event.
Longitude	-98.13776398° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	36.37224197° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	1.637489796 km	Depth of the event in kilometers.
Place	22km SSE 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	2019-08-02 10:56:19	Time when the event occurred. UTC/GMT
Updated	2019-08-02 11:03:01	Time when the event was most recently updated. UTC/GMT
Timezone offset	-360	Timezone offset from UTC in minutes at the event epicenter.
Felt	2	The total number of felt reports
CDI	3.8	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	automatic	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	197	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	ok	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,ok,	A comma-separated list of network contributors.
Number of Stations Used	85	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.1816301048	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.733985662 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	40.53800774	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	ok2019ozzu	Id of event.
Event Code	2019ozzu	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ok2019ozzu,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3.57 quake has struck near Helena in Oklahoma

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