M3.5 earthquake — 134 km SW of Adak, Alaska
An magnitude 3.5 earthquake occurred 134 km SW of Adak, Alaska on Aug 28, 2026 at 15:04 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 | M3.5 |
|---|---|
| Depth | 35.0 km |
| Coordinates | 51.215, -178.251 |
| Time | Aug 28, 15:04 UTC |
| Location | 134 km SW of Adak, Alaska |
| USGS event ID | us7000tcpm |
What this magnitude typically means
Minor earthquakes are often felt close to the epicenter but almost never cause damage. Whether you feel one at all depends on how near and how shallow it is. 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 | 17 km | Aug 28, 05:55 UTC | 122 km WSW of Adak, Alaska |
| M2.5 | 20 km | Sep 1, 23:13 UTC | 121 km WSW of Adak, Alaska |
| M3.1 | 24 km | Aug 30, 17:38 UTC | 114 km SW of Adak, Alaska |
| M3.5 | 28 km | Sep 2, 06:20 UTC | 159 km SW of Adak, Alaska |
| M3.5 | 28 km | Sep 2, 05:07 UTC | 160 km SW of Adak, Alaska |
| M2.7 | 35 km | Aug 28, 11:53 UTC | 169 km SW of Adak, Alaska |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.