M3.3 earthquake — 181 km S of Adak, Alaska
An magnitude 3.3 earthquake occurred 181 km S of Adak, Alaska on Aug 4, 2026 at 16:45 UTC. The epicenter was at a depth of 12 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 | M3.3 |
|---|---|
| Depth | 12.0 km |
| Coordinates | 50.242, -176.775 |
| Time | Aug 4, 16:45 UTC |
| Location | 181 km S of Adak, Alaska |
| USGS event ID | aka2026pikgdz |
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 |
|---|---|---|---|
| M2.7 | 71 km | Aug 5, 16:34 UTC | 213 km SSE of Adak, Alaska |
| M2.6 | 104 km | Aug 6, 16:20 UTC | 90 km SSE of Adak, Alaska |
| M2.5 | 123 km | Aug 4, 00:29 UTC | 119 km SW of Adak, Alaska |
| M2.8 | 129 km | Aug 6, 22:39 UTC | 54 km S of Adak, Alaska |
| M3.4 | 142 km | Aug 5, 13:57 UTC | 71 km SE of Adak, Alaska |
| M3.0 | 157 km | Aug 6, 13:35 UTC | 71 km SE of Adak, Alaska |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.