M4.1 earthquake — 34 km S of Adak, Alaska
An magnitude 4.1 earthquake occurred 34 km S of Adak, Alaska on Oct 3, 2026 at 01:03 UTC. The epicenter was at a depth of 49 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 | 49.1 km |
| Coordinates | 51.569, -176.686 |
| Time | Oct 3, 01:03 UTC |
| Location | 34 km S of Adak, Alaska |
| USGS event ID | us6000tza4 |
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 |
|---|---|---|---|
| M4.0 | 55 km | Oct 2, 06:02 UTC | 75 km SE of Adak, Alaska |
| M2.6 | 59 km | Oct 6, 11:09 UTC | 88 km SSE of Adak, Alaska |
| M4.1 | 97 km | Oct 3, 16:06 UTC | 93 km SW of Atka, Alaska |
| M2.5 | 104 km | Oct 6, 18:17 UTC | 128 km SW of Adak, Alaska |
| M2.8 | 186 km | Oct 6, 11:56 UTC | 203 km WSW of Adak, Alaska |
| M3.5 | 213 km | Oct 3, 21:25 UTC | 66 km SE of Atka, Alaska |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.