M5.1 earthquake — 149 km WSW of Adak, Alaska
A moderate magnitude 5.1 earthquake occurred 149 km WSW of Adak, Alaska on Sep 11, 2026 at 10:47 UTC. The epicenter was at a depth of 37 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 | M5.1 |
|---|---|
| Depth | 37.2 km |
| Coordinates | 51.173, -178.468 |
| Time | Sep 11, 10:47 UTC |
| Location | 149 km WSW of Adak, Alaska |
| USGS event ID | us7000tgky |
What this magnitude typically means
Moderate earthquakes are widely felt and can cause light damage close to the epicenter. The shaking you actually experience depends on how far away you are and what kind of ground you are on. 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 | 38 km | Oct 6, 18:17 UTC | 128 km SW of Adak, Alaska |
| M2.8 | 55 km | Oct 6, 11:56 UTC | 203 km WSW of Adak, Alaska |
| M4.1 | 131 km | Oct 3, 01:03 UTC | 34 km S of Adak, Alaska |
| M2.6 | 157 km | Oct 6, 11:09 UTC | 88 km SSE of Adak, Alaska |
| M4.0 | 173 km | Oct 2, 06:02 UTC | 75 km SE of Adak, Alaska |
| M4.1 | 228 km | Oct 3, 16:06 UTC | 93 km SW of Atka, Alaska |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.