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Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3 mag strikes near Alva in Oklahoma


Earthquake location 36.733S, -98.748WA minor earthquake with magnitude 3 (ml/mb) was detected on Saturday, 10 kilometers (6 miles) from Alva in Oklahoma. The epicenter was at a depth of 6.868 km (4 miles). The temblor was reported at 16:21:22 / 4:21 pm (local time epicenter). All ids that are associated to the event: us1000629f. Unique identifier: us1000629f. Exact location, longitude -98.748° West, latitude 36.733° North, depth = 6.868 km. Exact time and date of event in UTC/GMT: 09/07/16 / 2016-07-09 21:21:22 / July 9, 2016 @ 9:21 pm.

Epicenter of the earthquake was 66 km (41 miles) from Woodward (c. 12 100 pop). Nearest cities/city/villages to epicentrum/hypocenter was Woodward (min 5000 pop). Country/countries that might be effected, United States (c. 310 233 000 pop).

In the past 24 hours, there have been nine, in the last 10 days thirteen, in the past 30 days twenty-six and in the last 365 days three hundred and twenty-one earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. There are an estimated 130,000 minor earthquakes in the world each year.

Did you feel anything?

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: 10 km SW of Alva, Oklahoma.

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More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude -98.748° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.733° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 6.868 km Depth of the event in kilometers.
Place 10km SW 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 2016-07-09 21:21:22 Time when the event occurred. UTC/GMT
Updated 2016-07-22 03:56:23 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 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 139 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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.52 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 122 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 us1000629f Id of event.
Event Code 1000629f An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000629f, A comma-separated list of event ids that are associated to an event.

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