Minor earthquake, 3.6 mag strikes near Atka in Alaska

A minor earthquake with magnitude 3.6 (ml/mb) was reported 163 km SSE of Atka, Alaska (101 miles) on Saturday. The temblor was reported at 14:08:26 / 2:08 pm (local time epicenter). Id of earthquake: ak025ddhrv76. Event ids that are associated: ak025ddhrv76. The earthquake occurred at a depth of 41.9 km (26 miles) below the earth’s surface. Exact location of earthquake, longitude -173.1051 West, latitude 50.8941 North, depth = 41.9 km. Global time and date of event 18/10/25 / 2025-10-18 14:08:26 / October 18, 2025 @ 2:08 pm UTC/GMT.

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 seventy-two earthquakes of magnitude 3.0 or greater that has struck near. There are an estimated 130,000 minor earthquakes in the world each year. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

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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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 163 km SSE of Atka, Alaska.

Alaska Atka

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Parameter	Value	Description
Magnitude	3.6 mb	The magnitude for the event.
Longitude	-173.1051° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	50.8941° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	41.9 km	Depth of the event in kilometers.
Place	163 km SSE of Atka, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-10-18 14:08:26	Time when the event occurred. UTC/GMT
Updated	2025-10-18 20:22:55	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	1.905	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	199	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	0.58 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	ak025ddhrv76	Id of event.
Event Code	025ddhrv76	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak025ddhrv76,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.6 mag strikes near Atka in Alaska

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