M3.5 earthquake — 66 km SE of Atka, Alaska
An magnitude 3.5 earthquake occurred 66 km SE of Atka, Alaska on Oct 3, 2026 at 21:25 UTC. The epicenter was at a depth of 35 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 | M3.5 |
|---|---|
| Depth | 35.0 km |
| Coordinates | 51.722, -173.613 |
| Time | Oct 3, 21:25 UTC |
| Location | 66 km SE of Atka, Alaska |
| USGS event ID | us6000tzfa |
What this magnitude typically means
Minor earthquakes are often felt close to the epicenter but almost never cause damage. Whether you feel one at all depends on how near and how shallow it is. 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 |
|---|---|---|---|
| M4.1 | 116 km | Oct 3, 16:06 UTC | 93 km SW of Atka, Alaska |
| M3.9 | 144 km | Oct 6, 14:22 UTC | 209 km SSE of Atka, Alaska |
| M4.0 | 170 km | Oct 2, 06:02 UTC | 75 km SE of Adak, Alaska |
| M3.2 | 182 km | Oct 6, 11:53 UTC | 178 km SW of Nikolski, Alaska |
| M2.6 | 192 km | Oct 6, 11:09 UTC | 88 km SSE of Adak, Alaska |
| M4.1 | 213 km | Oct 3, 01:03 UTC | 34 km S of Adak, Alaska |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.