M5.0 earthquake — 239 km ESE of Attu Station, Alaska
A moderate magnitude 5.0 earthquake occurred 239 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 | 8.0 km |
| Coordinates | 52.078, 176.480 |
| Time | Aug 23, 23:20 UTC |
| Location | 239 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 |
|---|---|---|---|
| M3.2 | 5 km | Aug 21, 00:06 UTC | 234 km ESE of Attu Station, Alaska |
| M3.0 | 9 km | Aug 21, 01:13 UTC | 232 km ESE of Attu Station, Alaska |
| M3.7 | 9 km | Aug 22, 21:04 UTC | 236 km ESE of Attu Station, Alaska |
| M3.4 | 10 km | Aug 22, 18:55 UTC | 233 km ESE of Attu Station, Alaska |
| M3.4 | 11 km | Aug 21, 07:21 UTC | 231 km ESE of Attu Station, Alaska |
| M3.4 | 11 km | Aug 21, 01:49 UTC | 235 km ESE of Attu Station, Alaska |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.