M2.5 earthquake — 28 km S of Unalaska, Alaska
An magnitude 2.5 earthquake occurred 28 km S of Unalaska, Alaska on Aug 23, 2026 at 06:28 UTC. The epicenter was at a depth of 85 km — an intermediate-depth earthquake. Intermediate quakes spread their energy over a wider area and are often felt across a broad region.
Event data
| Magnitude | M2.5 |
|---|---|
| Depth | 85.2 km |
| Coordinates | 53.617, -166.557 |
| Time | Aug 23, 06:28 UTC |
| Location | 28 km S of Unalaska, Alaska |
| USGS event ID | us6000tn77 |
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 |
|---|---|---|---|
| M2.5 | 47 km | Aug 24, 19:37 UTC | 74 km SSE of Unalaska, Alaska |
| M2.7 | 63 km | Aug 21, 12:43 UTC | 81 km SE of Unalaska, Alaska |
| M2.6 | 73 km | Aug 25, 19:14 UTC | 100 km SSW of Unalaska, Alaska |
| M2.6 | 78 km | Aug 23, 23:45 UTC | 105 km SSW of Unalaska, Alaska |
| M4.3 | 82 km | Aug 21, 01:11 UTC | 73 km SSE of Akutan, Alaska |
| M2.5 | 90 km | Aug 21, 01:28 UTC | 87 km SSE of Akutan, Alaska |
Earthquake activity in this area
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Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.