M4.6 earthquake — Rat Islands, Aleutian Islands, Alaska
An magnitude 4.6 earthquake occurred Rat Islands, Aleutian Islands, Alaska on Sep 27, 2026 at 07:48 UTC. The epicenter was at a depth of 47 km — a shallow earthquake. Shallow quakes concentrate their energy near the surface, so they tend to produce stronger shaking close to the epicenter.
Event data
| Magnitude | M4.6 |
|---|---|
| Depth | 46.5 km |
| Coordinates | 50.904, 179.321 |
| Time | Sep 27, 07:48 UTC |
| Location | Rat Islands, Aleutian Islands, Alaska |
| USGS event ID | us6000txxm |
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 |
|---|---|---|---|
| M2.7 | 40 km | Sep 20, 14:29 UTC | 262 km WSW of Adak, Alaska |
| M4.4 | 41 km | Sep 26, 17:02 UTC | 263 km WSW of Adak, Alaska |
| M2.7 | 54 km | Sep 23, 07:28 UTC | Rat Islands, Aleutian Islands, Alaska |
| M2.7 | 88 km | Sep 20, 11:50 UTC | Rat Islands, Aleutian Islands, Alaska |
| M3.5 | 155 km | Sep 22, 05:49 UTC | 148 km WSW of Adak, Alaska |
| M3.5 | 177 km | Sep 25, 05:10 UTC | 126 km WSW of Adak, Alaska |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.