Minor earthquake, 3.8 mag has occurred near Attu Station in Alaska

A minor earthquake magnitude 3.8 (ml/mb) has occurred on Saturday, 133 km SE of Attu Station, Alaska (83 miles). Exact time and date of event in UTC/GMT: 12/04/25 / 2025-04-12 23:54:44 / April 12, 2025 @ 11:54 pm. Exact location of earthquake, longitude 174.4319 East, latitude 51.9217 North, depth = 51.291 km. Unique identifier: us7000pv2m. Ids that are associated to the event: us7000pv2m. The epicenter was at a depth of 51.291 km (32 miles). The 3.8-magnitude earthquake has occurred at 23:54:44 / 11:54 pm (local time epicenter).

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

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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 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: 133 km SE of Attu Station, Alaska.

Alaska Attu Station

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Parameter	Value	Description
Magnitude	3.8 mb	The magnitude for the event.
Longitude	174.4319° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	51.9217° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	51.291 km	Depth of the event in kilometers.
Place	133 km SE of Attu Station, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-04-12 23:54:44	Time when the event occurred. UTC/GMT
Updated	2025-04-25 21:11:37	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	,us,	A comma-separated list of network contributors.
Number of Stations Used	29	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.834	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.91 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	184	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	us7000pv2m	Id of event.
Event Code	7000pv2m	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000pv2m,	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 Attu Station in Alaska

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