M4.0 earthquake — 75 km SE of Adak, Alaska
An magnitude 4.0 earthquake occurred 75 km SE of Adak, Alaska on Oct 2, 2026 at 06:02 UTC. The epicenter was at a depth of 17 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 | M4.0 |
|---|---|
| Depth | 17.3 km |
| Coordinates | 51.328, -175.993 |
| Time | Oct 2, 06:02 UTC |
| Location | 75 km SE of Adak, Alaska |
| USGS event ID | aka2026tmocjx |
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 |
|---|---|---|---|
| M2.6 | 28 km | Oct 6, 11:09 UTC | 88 km SSE of Adak, Alaska |
| M4.1 | 55 km | Oct 3, 01:03 UTC | 34 km S of Adak, Alaska |
| M4.1 | 64 km | Oct 3, 16:06 UTC | 93 km SW of Atka, Alaska |
| M2.5 | 139 km | Oct 6, 18:17 UTC | 128 km SW of Adak, Alaska |
| M3.5 | 170 km | Oct 3, 21:25 UTC | 66 km SE of Atka, Alaska |
| M2.8 | 226 km | Oct 6, 11:56 UTC | 203 km WSW of Adak, Alaska |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.