Minor earthquake 3.9 mag, 61 km WSW of Attu Station, Alaska

A minor earthquake magnitude 3.9 (ml/mb) has occurred on Saturday, 61 km WSW of Attu Station, Alaska (38 miles). Global date and time of event UTC/GMT: 15/11/25 / 2025-11-15 12:53:13 / November 15, 2025 @ 12:53 pm. The epicenter was at a depth of 35.549 km (22 miles). Event id: us6000rs8y. Ids that are associated to the earthquake: us6000rs8y. Exact location of event, longitude 172.3886 East, latitude 52.5725 North, depth = 35.549 km. The temblor was detected at 12:53:13 / 12:53 pm (local time epicenter).

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. Every 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 one, in the past 30 days one and in the last 365 days fifteen earthquakes of magnitude 3.0 or greater that has occurred nearby.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 61 km WSW of Attu Station, Alaska. This information comes from the USGS Earthquake Notification Service.

Alaska Attu Station

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Parameter	Value	Description
Magnitude	3.9 mb	The magnitude for the event.
Longitude	172.3886° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	52.5725° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	35.549 km	Depth of the event in kilometers.
Place	61 km WSW 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	2025-11-15 12:53:13	Time when the event occurred. UTC/GMT
Updated	2025-12-04 13:14:00	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	234	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	28	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	1.054	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.81 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	206	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	us6000rs8y	Id of event.
Event Code	6000rs8y	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000rs8y,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake 3.9 mag, 61 km WSW of Attu Station, Alaska

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