M3.1 earthquake — 223 km SSE of Atka, Alaska
An magnitude 3.1 earthquake occurred 223 km SSE of Atka, Alaska on Sep 12, 2026 at 04:47 UTC. The epicenter was at a depth of 20 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 | 20.0 km |
| Coordinates | 50.308, -173.115 |
| Time | Sep 12, 04:47 UTC |
| Location | 223 km SSE of Atka, Alaska |
| USGS event ID | aka2026sbndnt |
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 |
|---|---|---|---|
| M2.7 | 147 km | Sep 12, 07:47 UTC | 114 km SE of Atka, Alaska |
| M3.1 | 173 km | Sep 12, 07:22 UTC | 118 km ESE of Atka, Alaska |
| M2.7 | 189 km | Sep 7, 07:02 UTC | 111 km SW of Atka, Alaska |
| M2.5 | 199 km | Sep 9, 02:39 UTC | 86 km SW of Atka, Alaska |
| M2.8 | 209 km | Sep 6, 14:39 UTC | 92 km SE of Adak, Alaska |
| M2.6 | 209 km | Sep 9, 12:39 UTC | 92 km SE of Adak, Alaska |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.