Minor earthquake: M3.3 quake has struck near Hennessey in Oklahoma

A minor earthquake magnitude 3.3 (ml/mb) strikes 5 kilometers (3 miles) from Hennessey in Oklahoma on Thursday. The epicenter was at a depth of 5.16 km (3 miles). The 3.3-magnitude earthquake was detected at 21:29:54 / 9:29 pm (local time epicenter). Event id: us1000ey9c. Ids that are associated to the earthquake: us1000ey9c. Date and time of earthquake in UTC/GMT: 22/06/18 / 2018-06-22 03:29:54 / June 22, 2018 @ 3:29 am. Exact location of earthquake, -97.8402° West, 36.1034° North, depth 5.16 km.

The epicenter was 76 km (48 miles) from Oklahoma City (c. 580 000 pop), 60 km (37 miles) from Edmond (c. 81 400 pop), 33 km (20 miles) from Enid (c. 49 400 pop), 70 km (44 miles) from Stillwater (c. 45 700 pop), 67 km (41 miles) from Yukon (c. 22 700 pop). Closest city/cities/towns to epicentrum/hypocenter was Del City, Mustang, Oklahoma City (min 5000 pop). Close country/countries that might be effected, United States (c. 310 233 000 pop).

There are an estimated 130,000 minor quakes in the world each year. In the past 24 hours, there have been one, in the last 10 days four, in the past 30 days six and in the last 365 days one hundred and fifty-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?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 5 km E of Hennessey, Oklahoma.

More information

Parameter	Value	Description
Magnitude	3.3 mb	The magnitude for the event.
Longitude	-97.8402° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	36.1034° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	5.16 km	Depth of the event in kilometers.
Place	5km E of Hennessey, Oklahoma	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2018-06-22 03:29:54	Time when the event occurred. UTC/GMT
Updated	2018-06-22 03:40:31	Time when the event was most recently updated. UTC/GMT
Timezone offset	-360	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		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	168	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	0.12	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.21 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	29	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	us1000ey9c	Id of event.
Event Code	1000ey9c	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us1000ey9c,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3.3 quake has struck near Hennessey in Oklahoma

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