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Minor World Earthquakes Magnitude -3.9

Minor earthquake: M3.8 quake has struck near Kaktovik in Alaska

Earthquake location 69.5377S, -144.8636WA minor earthquake magnitude 3.8 (ml/mb) has struck on Sunday, 81 km SW of Kaktovik, Alaska (50 miles). Exact time and date of earthquake 12/08/18 / 2018-08-12 16:33:40 / August 12, 2018 @ 4:33 pm UTC/GMT. The epicenter was at a depth of 0.6 km (0 miles). Exact location of earthquake, -144.8636° West, 69.5377° North, depth 0.6 km. The temblor was picked up at 07:33:40 / 7:33 am (local time epicenter). Unique identifier: ak20111103. Ids that are associated to the event: ak20111103.

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

How would you describe the shaking?

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. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 81 km SW of Kaktovik, Alaska.

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More information

Parameter Value Description
Magnitude 3.8 mb The magnitude for the event.
Longitude -144.8636° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 69.5377° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 0.6 km Depth of the event in kilometers.
Place 81km SW of Kaktovik, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-08-12 16:33:40 Time when the event occurred. UTC/GMT
Updated 2018-08-18 15:56:59 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI 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 222 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network ak The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ak, 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 0.65 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 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 ak20111103 Id of event.
Event Code 20111103 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak20111103, A comma-separated list of event ids that are associated to an event.

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