Minor earthquake, 3.8 mag has occurred near Amukta Island in Alaska

A minor earthquake with magnitude 3.8 (ml/mb) was detected on Saturday, 89 km W of Amukta Island, Alaska (55 miles). Exact time and date of event in UTC/GMT: 19/12/15 / 2015-12-19 20:21:12 / December 19, 2015 @ 8:21 pm. Unique identifier: ak12288861. Ids that are associated to the event: ak12288861. The earthquake was roughly at a depth of 144.3 km (90 miles). Exact location of earthquake, longitude -172.5666 West, latitude 52.4 North, depth = 144.3 km. The 3.8-magnitude earthquake has occurred at 10:21:12 / 10:21 am (local time epicenter).

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 one, in the past 30 days four and in the last 365 days one hundred and fourteen earthquakes of magnitude 3.0 or greater that have been detected nearby. Each year there are an estimated 130,000 minor earthquakes in the world.

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city 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: 89 km W of Amukta Island, Alaska.

Alaska Amukta Island

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Parameter	Value	Description
Magnitude	3.8 mb	The magnitude for the event.
Longitude	-172.5666° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	52.4° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	144.3 km	Depth of the event in kilometers.
Place	89km W of Amukta Island, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2015-12-19 20:21:12	Time when the event occurred. UTC/GMT
Updated	2015-12-20 01:40:24	Time when the event was most recently updated. UTC/GMT
Timezone offset	-600	Timezone offset from UTC in minutes at the event epicenter.
Felt	0	The total number of felt reports
CDI	1	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	0.78 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	ak12288861	Id of event.
Event Code	12288861	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak12288861,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.8 mag has occurred near Amukta Island in Alaska

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