M2.5 earthquake — 25 km S of Port Graham, Alaska
An magnitude 2.5 earthquake occurred 25 km S of Port Graham, Alaska on Sep 20, 2026 at 06:59 UTC. The epicenter was at a depth of 55 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 | M2.5 |
|---|---|
| Depth | 54.8 km |
| Coordinates | 59.125, -151.896 |
| Time | Sep 20, 06:59 UTC |
| Location | 25 km S of Port Graham, Alaska |
| USGS event ID | aka2026sqlsqi |
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 | 55 km | Sep 20, 01:58 UTC | 33 km NW of Nanwalek, Alaska |
| M2.5 | 79 km | Sep 20, 10:44 UTC | 14 km WNW of Anchor Point, Alaska |
| M2.8 | 80 km | Sep 16, 00:14 UTC | 35 km W of Anchor Point, Alaska |
| M2.6 | 83 km | Sep 20, 03:25 UTC | 55 km W of Anchor Point, Alaska |
| M2.5 | 94 km | Sep 16, 09:21 UTC | 18 km SE of Fox River, Alaska |
| M2.7 | 103 km | Sep 17, 23:44 UTC | 80 km ENE of Ouzinkie, Alaska |
Earthquake activity in this area
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Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.