Light earthquake: M4 quake has struck near Yakutat in Alaska

A light earthquake magnitude 4 (ml/mb) strikes 79 km N of Yakutat, Alaska (49 miles) on Wednesday. The earthquake was roughly at a depth of 5 km (3 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4-magnitude earthquake was detected at 00:43:10 / 12:43 am (local time epicenter). Unique identifier: ak2025ysnqak. Ids that are associated to the event: ak2025ysnqak. Date and time of earthquake in UTC/GMT: 17/12/25 / 2025-12-17 00:43:10 / December 17, 2025 @ 12:43 am. Exact location of event, depth 5 km, -139.952° West, 60.255° North.

There are an estimated 13,000 light earthquakes in the world each year. In the past 24 hours, there have been five, in the last 10 days three hundred and ten, in the past 30 days four hundred and fifty-nine and in the last 365 days four hundred and seventy-two earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel anything?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 79 km N of Yakutat, Alaska. This data comes from the USGS Earthquake Notification Service.

Alaska Yakutat

More information

Parameter	Value	Description
Magnitude	4 mb	The magnitude for the event.
Longitude	-139.952° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	60.255° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	5 km	Depth of the event in kilometers.
Place	79 km N of Yakutat, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-12-17 00:43:10	Time when the event occurred. UTC/GMT
Updated	2025-12-17 00:46:12	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	automatic	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	246	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	54	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.2	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.9 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	99	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	ak2025ysnqak	Id of event.
Event Code	2025ysnqak	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak2025ysnqak,	A comma-separated list of event ids that are associated to an event.

Earthquakes today

Current and latest world earthquakes breaking news, activity and articles today

Light earthquake: M4 quake has struck near Yakutat in Alaska

Did you feel anything?

More information

Leave a ReplyCancel reply

Follow us!

Tsunami videos

Categories

Information