Minor earthquake: M3.5 quake has struck near Chiniak in Alaska

A minor earthquake magnitude 3.5 (ml/mb) has occurred on Saturday, 247 km ESE of Chiniak, Alaska (153 miles). The 3.5-magnitude earthquake has occurred at 03:29:16 / 3:29 am (local time epicenter). Id of earthquake: ak2025zlcjer. Event ids that are associated: ak2025zlcjer. Exact time and date of event in UTC/GMT: 27/12/25 / 2025-12-27 03:29:16 / December 27, 2025 @ 3:29 am. The epicenter was at a depth of 16.5 km (10 miles). Exact location of event, longitude -148.801 West, latitude 56.449 North, depth = 16.5 km.

In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days ten and in the last 365 days fifty-three earthquakes of magnitude 3.0 or greater that was reported nearby. 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. 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: 247 km ESE of Chiniak, Alaska.

Alaska Chiniak

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Parameter	Value	Description
Magnitude	3.5 mb	The magnitude for the event.
Longitude	-148.801° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	56.449° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	16.5 km	Depth of the event in kilometers.
Place	247 km ESE of Chiniak, 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 03:29:16	Time when the event occurred. UTC/GMT
Updated	2025-12-27 08:11:35	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	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	188	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	40	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	2.5	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1 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	ml	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	ak2025zlcjer	Id of event.
Event Code	2025zlcjer	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak2025zlcjer,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3.5 quake has struck near Chiniak in Alaska

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