Minor earthquake, 3.8 mag was detected near Rat Islands, Aleutian Islands, Alaska

A minor earthquake magnitude 3.8 (ml/mb) has occurred on Monday, Rat Islands, Aleutian Islands, Alaska (0 miles). The epicenter was at a depth of 88.72 km (55 miles). Unique identifier: us7000csv0. Ids that are associated to the event: ak020gcuf2eq, us7000csv0. The temblor was picked up at 05:20:05 / 5:20 am (local time epicenter). Global time and date of event 21/12/20 / 2020-12-21 05:20:05 / December 21, 2020 @ 5:20 am UTC/GMT. Exact location of earthquake, longitude 178.3044 East, latitude 51.8776 North, depth = 88.72 km.

In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days nine and in the last 365 days one hundred and thirty earthquakes of magnitude 3.0 or greater that have been detected in the same area. 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.

Questions or comments?

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: Rat Islands, Aleutian Islands, Alaska. This information comes from the USGS Earthquake Notification Service.

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Parameter	Value	Description
Magnitude	3.8 mb	The magnitude for the event.
Longitude	178.3044° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	51.8776° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	88.72 km	Depth of the event in kilometers.
Place	Rat Islands, Aleutian Islands, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2020-12-21 05:20:05	Time when the event occurred. UTC/GMT
Updated	2020-12-22 10:28:09	Time when the event was most recently updated. UTC/GMT
Timezone offset		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	us	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,ak,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	1.764	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	191	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	mb	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	us7000csv0	Id of event.
Event Code	7000csv0	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak020gcuf2eq,us7000csv0,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.8 mag was detected near Rat Islands, Aleutian Islands, Alaska

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