Shallow M5.8 AFTERSHOCK hit 231mi from Juneau in The United States on Sunday Afternoon.

Written by Earthquakelist.org on December 8th, 2025. Last updated December 10th, 2025.

Under land 231 miles from Juneau in The United States, a shallow and significant MAG-5.8 aftershock occurred in the late afternoon of Sunday December 7th, 2025. The USGS has indicated there is a potential risk at tsunami's following this earthquake. Another country near the epicenter is Canada.

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Earthquake Summary

The earthquake struck on land in The United States, 231 miles (371 km) northwest of Juneau in Alaska. The center of this earthquake had a very shallow depth of 6 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.

Date and Time:	Dec 7, 2025 17:56 (Whitehorse Time) - Dec 8, 2025 00:56 Universal Time.
Location:	252 km west of Whitehorse, Yukon, Canada. Coordinates 60°20'23"N 139°35'40"W.
Map:	Map of area around epicenter. Click to open in Google Maps.
Magnitude:	MAG 5.8 Detected by 5 stations. Maximum Error Range ±0.268296 .
Depth:	6 mi (10 km) A very shallow depth.
Max. Intensity:	VII Very Strong On the Modified Mercalli Scale.
Tsunami Risk:	Potential tsunami risk The USGS has indicated there is a potential risk at tsunami's following this earthquake. Always stay cautious - More info here.

Potential tsunami risk

There is a potential tsunami risk in the aftermath of this earthquake, immediately evacuate to higher grounds away from coastal areas and monitor advice from local authorities. The US Geographic Survey organization has indicated a potential risk for tsunami's following this earthquake.

Tsunami Risk Factors

Minimal impact predicted

Based on scientific estimates by the US Geographic Survey (USGS), the risk of high fatalities for this earthquake is classified at level GREEN (low). They expect an 65% likelyhood of between 0 and 1 fatalities, and a 96% chance that the number of fatalities falls no higher than 10.

The USGS classifies the economic impact of this earthquake at level GREEN (low). They expect an 65% likelyhood of between 0 and 1 million US Dollars in economic damage and impact, and a 96% chance that the economic impact of this earthquake falls no higher than 10 million USD.

Roughly 2 thousand people exposed to shaking

This earthquake may have been felt by around 2 thousand people. That is the expected population size of the area exposed to a level of shaking of II or higher on the Modified Mercalli scale according to the USGS.

An estimated 710 people were exposed to level IV. At this level, light shaking and likely no damage can be expected. Intensity level III was experienced by the majority of people (around 2 thousand). In their region, weak shaking and probably no damage can be expected. All exposure to shaking was within the borders of Canada .

Nearby towns and cities

Canada and The United States are both located within 300km distance of the epicenter of the earthquake.

Whitehorse in Yukon, Canada is the nearest significant place from the epicenter. The earthquake occurred 252 kilometer (157 mi) west of Whitehorse.

Overview of nearby places

Earthquake Intensity Map

The graph below overlays a map of the region around the epicenter with earthquake intensity data provided by the US Geographic Survey. The highest intensity level detected for this earthquake is VII.

I Not felt

II Weak

III Weak

IV Light

V Moderate

VI Strong

VII Very Strong

VIII Severe

IX Violent

X Extreme

Shaking reported by 39 people

People that feel an earthquake may report their experience to the US Geographic Survey. Currently, 39 people have reported shaking in 2 places in Canada.We keep updating this article as more ground reports become available. You may report that you felt this earthquake here.

Places with most reports:

• Whitehorse, Yukon, Canada: 38 people.
• Haines Junction, Yukon, Canada: 1 person.

This is likely an aftershock

This earthquake is likely an aftershock of the MAG-7 earthquake that struck 1 day earlier. That main earthquake hit 2.1 mi (3 km) north-east of the epicenter of this MAG-5.8 aftershock.

Overview of foreshocks and aftershocks

More earthquakes coming?

The risk of aftershocks decreases rapidly over time. Usually, aftershocks are at least one order of magnitude lower than a main shock.

It's always adviced to be cautious of the risk of a larger shock following any significant earthquake, however this risk is fairly small. There is a roughly 94 percent change that no larger main shock will follow in the days following this earthquake.

Earthquakes like this are common in the region

Earthquakes of this strength occur quite regularly in the region. In total, 3 earthquakes with a magnitude of 5.8 or higher have been registered within 300km (186 mi) of this epicenter in the past 10 years. This comes down to an average of once every 3 years.

Sources

Last updated 10/12/25 11:08 (). As more information on this earthquake becomes available this article will be updated. This article is automatically composed based on data originating from multiple sources.

1. US Geographic Society (USGS): Earthquake us6000rt9w
2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20251208_0000012
3. Geonames.org: World Cities Database
4. Google Maps: Static API
5. Earthquakelist.org: Historic Earthquakes Database

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