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Light World Earthquakes Magnitude 4-4.9

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

Posted by admin on December 30, 2025 0 Comments

Earthquake location 60.3517S, -139.4116WA light earthquake magnitude 4.3 (ml/mb) has occurred on Saturday, 91 km NNE of Yakutat, Alaska (57 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, depth 5 km, -139.4116° West, 60.3517° North. Date and time of earthquake in UTC/GMT: 06/12/25 / 2025-12-06 20:49:23 / December 6, 2025 @ 8:49 pm. Event ids that are associated to the earthquake: ak2025xzwozj, us6000rsyg. Id of event: us6000rsyg. The 4.3-magnitude earthquake was detected at 20:49:23 / 8:49 pm (local time epicenter). The earthquake was roughly at a depth of 5 km (3 miles).

In the past 24 hours, there have been five hundred and thirty-four, in the last 10 days five hundred and thirty-four, in the past 30 days five hundred and thirty-four and in the last 365 days five hundred and fourty-seven earthquakes of magnitude 3.0 or greater that have been detected in the same area. Each year there are an estimated 13,000 light earthquakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel anything?

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. 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: 91 km NNE of Yakutat, Alaska.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -139.4116° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 60.3517° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 5 km Depth of the event in kilometers.
Place 91 km NNE 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 2025-12-06 20:49:23 Time when the event occurred. UTC/GMT
Updated 2025-12-30 00:05:09 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 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 42 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.492 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.72 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 60 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 us6000rsyg Id of event.
Event Code 6000rsyg An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak2025xzwozj,us6000rsyg, A comma-separated list of event ids that are associated to an event.

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