M4.0 earthquake — 81 km SSW of Nikolski, Alaska
An magnitude 4.0 earthquake occurred 81 km SSW of Nikolski, Alaska on Sep 26, 2026 at 21:31 UTC. The epicenter was at a depth of 35 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 | M4.0 |
|---|---|
| Depth | 35.0 km |
| Coordinates | 52.287, -169.424 |
| Time | Sep 26, 21:31 UTC |
| Location | 81 km SSW of Nikolski, Alaska |
| USGS event ID | us6000txwq |
What this magnitude typically means
Light earthquakes are felt by most people nearby but rarely cause damage. Distance, depth, and soil type determine whether a quake feels sharp or barely noticeable. 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 |
|---|---|---|---|
| M3.8 | 66 km | Sep 25, 12:37 UTC | 136 km SW of Nikolski, Alaska |
| M3.5 | 95 km | Sep 24, 16:52 UTC | 158 km SW of Nikolski, Alaska |
| M3.6 | 108 km | Sep 21, 10:00 UTC | 167 km WSW of Nikolski, Alaska |
| M3.9 | 110 km | Sep 22, 00:44 UTC | 166 km WSW of Nikolski, Alaska |
| M3.5 | 142 km | Sep 24, 11:34 UTC | 119 km ESE of Nikolski, Alaska |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.