LIGHT EARTHQUAKE
153 km WNW of Adak, Alaska
A magnitude 4.6 earthquake struck 153 km WNW of Adak, Alaska on 25 Oct 2026, 17:49 UTC. The hypocentre was 152.9 km below the surface — intermediate by seismological convention. The figures have been revised 1 time since the first report. 2 other earthquakes above our reporting threshold have been recorded within 250 km in the past 30 days.
- Depth
- 152.9 km
- Latitude
- 52.19°N
- Time
- 17:49 UTC
- Magnitude
- M4.6
intermediate
178.81°W longitude
25 Oct 2026
mb
EPICENTRE
MAGNITUDE 4.6
Noticeable shaking of indoor objects. Damage is unlikely.
The scale is logarithmic: this released about 250 times the energy of a magnitude 3.0, roughly the energy of 120 tonnes of TNT.
152.9 KM DEEP
At this depth the energy spreads before it reaches the surface. Shaking is usually weaker than a shallow earthquake of the same size, but it can be felt across a wider area.
NEARBY IN THE PAST 30 DAYS
2 earthquakes above our reporting threshold within 250 km of this one, the largest a magnitude 4.1.
OTHER RECENT EARTHQUAKES
25 Oct 2026, 17:44 UTC · 110 km deep
25 Oct 2026, 17:11 UTC · 62.1 km deep
25 Oct 2026, 11:25 UTC · 7 km deep
25 Oct 2026, 11:24 UTC · 10 km deep