M4.0 earthquake — Rat Islands, Aleutian Islands, Alaska
An magnitude 4.0 earthquake occurred Rat Islands, Aleutian Islands, Alaska on Sep 10, 2026 at 21:14 UTC. The epicenter was at a depth of 100 km — an intermediate-depth earthquake. Intermediate quakes spread their energy over a wider area and are often felt across a broad region.
Event data
| Magnitude | M4.0 |
|---|---|
| Depth | 100.1 km |
| Coordinates | 51.679, 178.583 |
| Time | Sep 10, 21:14 UTC |
| Location | Rat Islands, Aleutian Islands, Alaska |
| USGS event ID | us7000tghu |
What this magnitude typically means
Light earthquakes are felt by most people nearby but rarely cause damage. Distance, depth, and soil type determine whether a quake feels sharp or barely noticeable. Tremor does not compute a single local shaking figure here, because how strong a quake feels at any address depends on distance, depth and local geology — open the interactive globe to explore the ShakeMap and estimated intensity.
Nearby recent earthquakes
| Magnitude | Distance | Time (UTC) | Location |
|---|---|---|---|
| M2.5 | 26 km | Sep 7, 22:25 UTC | Rat Islands, Aleutian Islands, Alaska |
| M2.7 | 49 km | Sep 4, 23:54 UTC | Rat Islands, Aleutian Islands, Alaska |
| M2.6 | 95 km | Sep 10, 14:50 UTC | 235 km W of Adak, Alaska |
| M2.5 | 126 km | Sep 9, 00:48 UTC | 205 km W of Adak, Alaska |
| M2.5 | 130 km | Sep 5, 14:02 UTC | 200 km W of Adak, Alaska |
| M2.6 | 132 km | Sep 5, 11:32 UTC | 242 km WSW of Adak, Alaska |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.