M4.1 earthquake — 231 km ESE of Attu Station, Alaska
An magnitude 4.1 earthquake occurred 231 km ESE of Attu Station, Alaska on Sep 3, 2026 at 17:40 UTC. The epicenter was at a depth of 19 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 | M4.1 |
|---|---|
| Depth | 19.2 km |
| Coordinates | 52.098, 176.360 |
| Time | Sep 3, 17:40 UTC |
| Location | 231 km ESE of Attu Station, Alaska |
| USGS event ID | us7000te2d |
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 |
|---|---|---|---|
| M3.2 | 14 km | Aug 29, 23:32 UTC | 231 km ESE of Attu Station, Alaska |
| M5.0 | 16 km | Sep 4, 02:28 UTC | 236 km ESE of Attu Station, Alaska |
| M2.5 | 179 km | Sep 2, 07:09 UTC | Rat Islands, Aleutian Islands, Alaska |
| M2.7 | 235 km | Aug 29, 08:06 UTC | 250 km W of Adak, Alaska |
| M3.1 | 256 km | Aug 28, 06:26 UTC | 238 km W of Adak, Alaska |
| M2.5 | 260 km | Aug 28, 13:29 UTC | 224 km W of Adak, Alaska |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.