LIGHT EARTHQUAKE
Rat Islands, Aleutian Islands, Alaska
A magnitude 4.0 earthquake struck Rat Islands, Aleutian Islands, Alaska on 10 Sept 2026, 21:14 UTC. The hypocentre was 100.1 km below the surface — intermediate by seismological convention. 7 other earthquakes above our reporting threshold have been recorded within 250 km in the past 30 days.
- Depth
- 100.1 km
- Latitude
- 51.68°N
- Time
- 21:14 UTC
- Magnitude
- M4.0
intermediate
178.58°E longitude
10 Sept 2026
mb
EPICENTRE
MAGNITUDE 4.0
Noticeable shaking of indoor objects. Damage is unlikely.
The scale is logarithmic: this released about 32 times the energy of a magnitude 3.0, roughly the energy of 15 tonnes of TNT.
100.1 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
7 earthquakes above our reporting threshold within 250 km of this one, the largest a magnitude 5.0.
OTHER RECENT EARTHQUAKES
18 Sept 2026, 02:12 UTC · 36.3 km deep
18 Sept 2026, 01:29 UTC · 106 km deep
18 Sept 2026, 01:07 UTC · 53.9 km deep
17 Sept 2026, 22:11 UTC · 82.7 km deep