M2.8 earthquake — 75 km SE of Adak, Alaska
An magnitude 2.8 earthquake occurred 75 km SE of Adak, Alaska on Aug 29, 2026 at 21:30 UTC. The epicenter was at a depth of 23 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 | M2.8 |
|---|---|
| Depth | 22.6 km |
| Coordinates | 51.459, -175.771 |
| Time | Aug 29, 21:30 UTC |
| Location | 75 km SE of Adak, Alaska |
| USGS event ID | aka2026rcyhhy |
What this magnitude typically means
Very small earthquakes are usually only detected by instruments and are rarely felt. They are a normal part of background seismic activity. 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 |
|---|---|---|---|
| M2.6 | 25 km | Sep 1, 07:53 UTC | 73 km SSE of Adak, Alaska |
| M3.1 | 39 km | Aug 29, 04:15 UTC | 103 km SW of Atka, Alaska |
| M2.8 | 39 km | Aug 31, 02:49 UTC | 75 km SSE of Adak, Alaska |
| M4.0 | 40 km | Sep 2, 04:06 UTC | 67 km SSE of Adak, Alaska |
| M2.6 | 43 km | Aug 28, 13:09 UTC | 85 km E of Adak, Alaska |
| M2.5 | 45 km | Aug 27, 12:21 UTC | 98 km SW of Atka, Alaska |
Earthquake activity in this area
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Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.