A M4.6 earthquake struck under land 64 miles from Anchorage in The United States around noon of Friday October 24th, 2025. Roughly 420 thousand people may have felt this earthquake.
Felt the earthquake? Share this article: 
Earthquake Summary
The earthquake struck on land in The United States, 64 miles (103 km) northwest of Anchorage in Alaska. The center of this earthquake had a quite shallow depth of 41 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.
| Date and Time: | Oct 24, 2025 12:03PM (Anchorage Time) - Oct 24, 2025 20:03 Universal Time. |
|---|---|
| Location: | 64 mi NW of Anchorage, Alaska, The United States. Coordinates 61°53'1"N 151°14'34"W. |
| Map: |  Map of area around epicenter. Click to open in Google Maps. |
| Magnitude: | MAG 4.6 Detected by 35 stations. Maximum Error Range ±0.052 . |
| Depth: | 41 mi (67 km) A quite shallow depth. |
| Max. Intensity: | IV
Light On the Modified Mercalli Scale. |
| Tsunami Risk: | Tsunami very unlikely While this was a shallow earthquake, it appears to have occurred under land with a magnitude not strong enough to cause tsunami's. Always stay cautious - More info here. |
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 69% likelyhood of between 0 and 1 fatalities, and a 98% 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 420 thousand people exposed to shaking
This earthquake may have been felt by around 420 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.
Weak shaking and probably no damage may have been experienced by an estimated 279,100 people. At III, it is the highest MMI level this earthquake has caused.
| People | MMI Level | Shaking | Damage |
|---|---|---|---|
| 41,210 | I |
Not noticable | None |
| 145,000 | II |
Very weak | None |
| 279,100 | III |
Weak | Probably none |
| 0 | IV |
Light | Likely none |
| 0 | V |
Moderate | Very light |
| 0 | VI |
Strong | Light |
| 0 | VII |
Very Strong | Moderate |
| 0 | VIII |
Severe | Moderate to heavy |
| 0 | IX |
Violent | Heavy |
| 0 | X |
Extreme | Very heavy |
Nearby towns and cities
This earthquake may have been felt in The United States . The closest significant population center near the earthquake is Anchorage in Alaska, The United States. Anchorage is located 64 miles (103 km) northwest of the epicenter. The intensity of shaking and damage in Anchorage is estimated to be around level III on the Modified Mercalli Intensity scale (weak shaking, probably no damage).
Overview of nearby places
| Distance | Place | Intensity (MMI) |
|---|---|---|
| 64 mi (103 km) SE from epicenter |
Anchorage Alaska, The United States. |
III
Weak |
| 67 mi (108 km) SE from epicenter |
Eagle River Alaska, The United States. |
III
Weak |
Earthquake Intensity Map
The maximum intensity (MMI Scale) caused by this earthquake is IV. The map below shows in which areas this earthquake was the most and least impactful. It is based on data from the US Geographic Survey.
Risk of aftershocks?
We have not yet detected any foreshocks or aftershocks (MAG-2.5 or higher) within 100km (62 mi) of this earthquake.
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.
Read: How to Stay Safe during an Earthquake (cdc.gov).Earthquakes like this happen often in the region
Earthquakes of this strength are very common in the region. This is the strongest earthquake to hit since January 30th, 2025, when a 5.2 magnitude earthquake hit 179 mi (287 km) further west-northwest. An even stronger magnitude 7.1 earthquake struck on November 30th, 2018.
In total, 65 earthquakes with a magnitude of 4.6 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 2 months.
Tsunami very unlikely
While MAG-6.5+ earthquakes may cause tsunami's, it appears that the epicenter of this earthquake hit under land. In addition, the reported depth is deeper than 100km, making the risk of a tsunami even less likely. However always stay cautious and monitor advice from local authorities.
Tsunami Risk Factors
| Factor | Under Sea? | MAG-6.5 or stronger? | Shallow depth? |
|---|---|---|---|
| Explanation | Almost all tsunami's are caused by earthquakes with their epicenter under sea or very near the sea. However stay cautious in coastal areas as earthquakes on land may cause landslides into sea, potentially still causing a local tsunami. | Under MAG 6.5: Very unlikely to cause a tsunami. MAG 6.5 to 7.5: Destructive tsunami's do occur, but are uncommon. Likely to observe small sea level changes. MAG 7.6+: Earthquakes with these magnitudes might produce destructive tsunami's. |
Most destructive tsunami's are caused by shallow earthquakes with a depth between 0 and 100km under the surface of the earth. Deeper tsunami's are unlikely to displace to ocean floor. |
| This Earthquake | Not this earthquake. This earthquake appears to have struck on land far from any coast. |
Not this earthquake. This earthquake had a magnitude of 4.6. Earthquakes of this strength are unlikely to trigger a tsunami. |
This earthquake occurred at a depth of of 41 mi (67 km). Earthquakes this shallow could trigger a tsunami. |
Sources
Last updated 04/12/25 03:48 (). 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.
- US Geographic Society (USGS): Earthquake ak025dnijfwa
- European-Mediterranean Seismological Centre (EMSC): Earthquake 20251024_0000297
- Geonames.org: World Cities Database
- Google Maps: Static API
- Earthquakelist.org: Historic Earthquakes Database
Share this article:
