M3.1 earthquake — 200 km W of Adak, Alaska

An magnitude 3.1 earthquake occurred 200 km W of Adak, Alaska on Aug 30, 2026 at 17:22 UTC. The epicenter was at a depth of 9 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 | M3.1 |
|---|---|
| Depth | 8.9 km |
| Coordinates | 51.616, -179.504 |
| Time | Aug 30, 17:22 UTC |
| Location | 200 km W of Adak, Alaska |
| USGS event ID | aka2026rembgx |
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 |
|---|---|---|---|
| M2.5 | 32 km | Aug 28, 13:29 UTC | 224 km W of Adak, Alaska |
| M3.1 | 38 km | Aug 28, 06:26 UTC | 238 km W of Adak, Alaska |
| M2.6 | 43 km | Aug 28, 21:21 UTC | 179 km WSW of Adak, Alaska |
| M3.2 | 43 km | Aug 30, 13:36 UTC | 234 km WSW of Adak, Alaska |
| M3.1 | 49 km | Aug 28, 18:59 UTC | 162 km WSW of Adak, Alaska |
| M2.7 | 55 km | Aug 29, 08:06 UTC | 250 km W of Adak, Alaska |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.