Light earthquake: M4.6 quake has struck near Atka in Alaska

A light earthquake magnitude 4.6 (ml/mb) has occurred on Saturday, 97 km SW of Atka, Alaska (60 miles). Exact location of event, depth 18.1 km, -175.228° West, 51.589° North. The 4.6-magnitude earthquake has occurred at 22:08:25 / 10:08 pm (local time epicenter). Event ids that are associated to the earthquake: ak2025zmnlpv. Id of event: ak2025zmnlpv. Global time and date of event 27/12/25 / 2025-12-27 22:08:25 / December 27, 2025 @ 10:08 pm UTC/GMT. The earthquake occurred at a depth of 18.1 km (11 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days six, in the past 30 days eight and in the last 365 days three hundred and eleven earthquakes of magnitude 3.0 or greater that has occurred nearby. Each year there are an estimated 13,000 light quakes in the world.

Did you feel it?

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 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: 97 km SW of Atka, Alaska.

Alaska Atka

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Parameter	Value	Description
Magnitude	4.6 mb	The magnitude for the event.
Longitude	-175.228° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	51.589° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	18.1 km	Depth of the event in kilometers.
Place	97 km SW 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	2025-12-27 22:08:25	Time when the event occurred. UTC/GMT
Updated	2025-12-28 00:15:03	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	3.159	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	326	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	34	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.6	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.8 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	225	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	ak2025zmnlpv	Id of event.
Event Code	2025zmnlpv	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak2025zmnlpv,	A comma-separated list of event ids that are associated to an event.

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Light earthquake: M4.6 quake has struck near Atka in Alaska

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