M4.5 earthquake — 121 km SE of Atka, Alaska
An magnitude 4.5 earthquake occurred 121 km SE of Atka, Alaska on Oct 31, 2026 at 18:50 UTC. The epicenter was at a depth of 1 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 | M4.5 |
|---|---|
| Depth | 1.0 km |
| Coordinates | 51.521, -172.815 |
| Time | Oct 31, 18:50 UTC |
| Location | 121 km SE of Atka, Alaska |
| USGS event ID | aka2026vpcige |
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 |
|---|---|---|---|
| M4.5 | 20 km | Oct 31, 18:51 UTC | 111 km ESE of Atka, Alaska |
| M3.0 | 50 km | Oct 27, 10:49 UTC | 117 km ESE of Atka, Alaska |
| M3.4 | 78 km | Oct 26, 05:05 UTC | 106 km E of Atka, Alaska |
| M4.2 | 94 km | Oct 27, 21:07 UTC | 161 km SSE of Atka, Alaska |
| M2.9 | 101 km | Oct 27, 17:18 UTC | 82 km S of Atka, Alaska |
| M2.9 | 108 km | Oct 26, 06:17 UTC | 35 km S of Atka, Alaska |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.