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Light earthquake: M4.2042009278578 quake has struck near Yakutat in Alaska

Posted by admin on December 8, 2025 0 Comments

Earthquake location 60.517021179199S, -140.06967163086WA light earthquake magnitude 4.2042009278578 (ml/mb) has occurred on Monday, 109 km N of Yakutat, Alaska (68 miles). The earthquake was roughly at a depth of 5 km (3 miles). Exact time and date of earthquake 08/12/25 / 2025-12-08 17:45:36 / December 8, 2025 @ 5:45 pm UTC/GMT. The temblor was picked up at 17:45:36 / 5:45 pm (local time epicenter). Unique identifier: ak2025ydhyjs. Ids that are associated to the event: at00t6ypc1, ak2025ydhyjs. A tsunami warning has been issued near Yakutat in Alaska (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, -140.06967163086° West, 60.517021179199° North, depth 5 km.

Every year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been fourty-seven, in the last 10 days two hundred and sixty-nine, in the past 30 days two hundred and sixty-nine and in the last 365 days two hundred and eighty-nine earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel it?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 109 km N of Yakutat, Alaska.

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More information

Parameter Value Description
Magnitude 4.2042009278578 mb The magnitude for the event.
Longitude -140.06967163086° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 60.517021179199° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 5 km Depth of the event in kilometers.
Place 109 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 17:45:36 Time when the event occurred. UTC/GMT
Updated 2025-12-08 17:55:37 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 reviewed Indicates whether the event has been reviewed by a human.
Tsunami 1 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 272 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 ,at,ak, A comma-separated list of network contributors.
Number of Stations Used 72 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.43224835395813 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.6971957036924 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 58.620452880859 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 ak2025ydhyjs Id of event.
Event Code 2025ydhyjs An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00t6ypc1,ak2025ydhyjs, A comma-separated list of event ids that are associated to an event.

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