M4.2 earthquake — Rat Islands, Aleutian Islands, Alaska
An magnitude 4.2 earthquake occurred Rat Islands, Aleutian Islands, Alaska on Oct 19, 2026 at 16:27 UTC. The epicenter was at a depth of 52 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 | M4.2 |
|---|---|
| Depth | 52.2 km |
| Coordinates | 51.518, 178.369 |
| Time | Oct 19, 16:27 UTC |
| Location | Rat Islands, Aleutian Islands, Alaska |
| USGS event ID | us6000u3de |
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 |
|---|---|---|---|
| M2.5 | 28 km | Oct 21, 00:13 UTC | Rat Islands, Aleutian Islands, Alaska |
| M3.3 | 200 km | Oct 21, 13:57 UTC | 237 km SE of Attu Station, Alaska |
| M4.6 | 208 km | Oct 25, 17:49 UTC | 153 km WNW of Adak, Alaska |
| M3.0 | 236 km | Oct 19, 01:43 UTC | 127 km WSW of Adak, Alaska |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.