M4.8 earthquake — 230 km ESE of Attu Station, Alaska
An magnitude 4.8 earthquake occurred 230 km ESE of Attu Station, Alaska on Sep 4, 2026 at 02:28 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 | M4.8 |
|---|---|
| Depth | 10.0 km |
| Coordinates | 52.181, 176.402 |
| Time | Sep 4, 02:28 UTC |
| Location | 230 km ESE of Attu Station, Alaska |
| USGS event ID | us7000te7l |
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 |
|---|---|---|---|
| M2.7 | 193 km | Sep 23, 07:28 UTC | Rat Islands, Aleutian Islands, Alaska |
| M4.6 | 247 km | Sep 27, 07:48 UTC | Rat Islands, Aleutian Islands, Alaska |
| M4.4 | 254 km | Sep 27, 10:30 UTC | 259 km WSW of Adak, Alaska |
| M4.4 | 257 km | Sep 26, 17:02 UTC | 263 km WSW of Adak, Alaska |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.