M4.0 earthquake — 169 km S of False Pass, Alaska
An magnitude 4.0 earthquake occurred 169 km S of False Pass, Alaska on Oct 22, 2026 at 21:42 UTC. The epicenter was at a depth of 10 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 | 10.0 km |
| Coordinates | 53.335, -163.554 |
| Time | Oct 22, 21:42 UTC |
| Location | 169 km S of False Pass, Alaska |
| USGS event ID | us6000u47r |
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 |
|---|---|---|---|
| M3.2 | 11 km | Oct 21, 12:18 UTC | 159 km S of False Pass, Alaska |
| M4.5 | 12 km | Oct 21, 12:03 UTC | 158 km S of False Pass, Alaska |
| M2.5 | 14 km | Oct 21, 14:26 UTC | 155 km S of False Pass, Alaska |
| M2.6 | 18 km | Oct 21, 12:39 UTC | 151 km S of False Pass, Alaska |
| M3.3 | 18 km | Oct 21, 12:18 UTC | 151 km S of False Pass, Alaska |
| M2.5 | 18 km | Oct 21, 21:11 UTC | 151 km S of False Pass, Alaska |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.