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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.6 mag was detected near Alva in Oklahoma

Earthquake location 36.5456S, -98.6721WA minor earthquake with magnitude 3.6 (ml/mb) was reported 28 kilometers (17 miles) from Alva in Oklahoma on Thursday. The 3.6-magnitude earthquake was detected at 13:32:43 / 1:32 pm (local time epicenter). Date and time of earthquake in UTC/GMT: 21/04/16 / 2016-04-21 18:32:43 / April 21, 2016 @ 6:32 pm. Exact location of event, longitude -98.6721 West, latitude 36.5456 North, depth = 7.73 km. Event id: us20005kji. Ids that are associated to the earthquake: us20005kji. The earthquake occurred at a depth of 7.73 km (5 miles).

Closest city/cities/towns to epicentrum/hypocenter was Watonga, Enid, Woodward (min 5000 pop). Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Earthquake epicenter was 73 km (45 miles) from Enid (c. 49 400 pop), 65 km (41 miles) from Woodward (c. 12 100 pop), 81 km (51 miles) from Watonga (c. 5 100 pop).

There are an estimated 130,000 minor earthquakes in the world each year. 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 five, in the past 30 days eighteen and in the last 365 days four hundred earthquakes of magnitude 3.0 or greater that has occurred nearby.

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. 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: 28 km S of Alva, Oklahoma.

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More information

Parameter Value Description
Magnitude 3.6 mb The magnitude for the event.
Longitude -98.6721° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.5456° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 7.73 km Depth of the event in kilometers.
Place 28km S of Alva, Oklahoma Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-04-21 18:32:43 Time when the event occurred. UTC/GMT
Updated 2016-04-21 18:51:00 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 Timezone offset from UTC in minutes at the event epicenter.
Felt 2 The total number of felt reports
CDI 3.3 The maximum reported intensity for the event.
MMI 3.88 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 200 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 0.051 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.41 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 55 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 us20005kji Id of event.
Event Code 20005kji An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20005kji, A comma-separated list of event ids that are associated to an event.

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