M5.0 earthquake — 231 km ESE of Attu Station, Alaska
A moderate magnitude 5.0 earthquake occurred 231 km ESE of Attu Station, Alaska on Aug 23, 2026 at 23:20 UTC. The epicenter was at a depth of 8 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 | M5.0 |
|---|---|
| Depth | 8.1 km |
| Coordinates | 52.191, 176.430 |
| Time | Aug 23, 23:20 UTC |
| Location | 231 km ESE of Attu Station, Alaska |
| USGS event ID | us6000tn19 |
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 |
|---|---|---|---|
| M4.0 | 158 km | Sep 10, 21:14 UTC | Rat Islands, Aleutian Islands, Alaska |
| M2.6 | 175 km | Sep 11, 19:16 UTC | Rat Islands, Aleutian Islands, Alaska |
| M2.5 | 176 km | Sep 9, 23:26 UTC | Rat Islands, Aleutian Islands, Alaska |
| M3.5 | 190 km | Sep 15, 21:49 UTC | Rat Islands, Aleutian Islands, Alaska |
| M2.5 | 213 km | Sep 14, 03:45 UTC | 281 km W of Adak, Alaska |
| M2.8 | 217 km | Sep 10, 07:22 UTC | 260 km W of Adak, Alaska |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.