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Light earthquake, 4.1 mag was detected near Yakutat in Alaska

Posted by admin on December 17, 2025 0 Comments

Earthquake location 60.349S, -139.901WA light earthquake magnitude 4.1 (ml/mb) has occurred on Wednesday, 89 km N of Yakutat, Alaska (55 miles). Exact location, longitude -139.901° West, latitude 60.349° North, depth = 5 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 5 km (3 miles). Date and time of earthquake in UTC/GMT: 17/12/25 / 2025-12-17 00:42:29 / December 17, 2025 @ 12:42 am. The temblor was reported at 00:42:29 / 12:42 am (local time epicenter). All ids that are associated to the event: ak2025ysnoou. Unique identifier: ak2025ysnoou.

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

Did you feel it?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 89 km N of Yakutat, Alaska.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -139.901° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 60.349° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 5 km Depth of the event in kilometers.
Place 89 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 00:42:29 Time when the event occurred. UTC/GMT
Updated 2025-12-17 00:44:19 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 259 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 0.7 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 87 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 ak2025ysnoou Id of event.
Event Code 2025ysnoou An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak2025ysnoou, A comma-separated list of event ids that are associated to an event.

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