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Light earthquake: M4.3 quake has struck near Yakutat in Alaska

Posted by admin on December 9, 2025 0 Comments

Earthquake location 60.5185S, -139.8301WA light earthquake magnitude 4.3 (ml/mb) has struck on Monday, 108 km N of Yakutat, Alaska (67 miles). The temblor was picked up at 22:51:54 / 10:51 pm (local time epicenter). Event ids that are associated to the earthquake: ak2025ydscin, us6000rtiu. Id of event: us6000rtiu. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, -139.8301° West, 60.5185° North, depth 3.462 km. The epicenter of the earthquake was roughly 3.462 km (2 miles) below the earth’s surface. Global time and date of event 08/12/25 / 2025-12-08 22:51:54 / December 8, 2025 @ 10:51 pm UTC/GMT.

In the past 24 hours, there have been eighty, in the last 10 days three hundred and thirty-seven, in the past 30 days three hundred and thirty-seven and in the last 365 days three hundred and fifty-five earthquakes of magnitude 3.0 or greater that have been detected in the same area. 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. 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: 108 km N of Yakutat, Alaska.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -139.8301° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 60.5185° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 3.462 km Depth of the event in kilometers.
Place 108 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 2025-12-08 22:51:54 Time when the event occurred. UTC/GMT
Updated 2025-12-09 22:44:32 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 4.641 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 284 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ak,us, A comma-separated list of network contributors.
Number of Stations Used 58 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.473 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.53 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 46 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us6000rtiu Id of event.
Event Code 6000rtiu An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak2025ydscin,us6000rtiu, A comma-separated list of event ids that are associated to an event.

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