M2.8 earthquake — 128 km WSW of Adak, Alaska
An magnitude 2.8 earthquake occurred 128 km WSW of Adak, Alaska on Sep 11, 2026 at 05:41 UTC. The epicenter was at a depth of 9 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 | 8.7 km |
| Coordinates | 51.473, -178.376 |
| Time | Sep 11, 05:41 UTC |
| Location | 128 km WSW of Adak, Alaska |
| USGS event ID | us7000th3g |
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 |
|---|---|---|---|
| M2.7 | 29 km | Sep 13, 07:46 UTC | 123 km SW of Adak, Alaska |
| M3.9 | 30 km | Sep 13, 02:08 UTC | 150 km WSW of Adak, Alaska |
| M5.3 | 31 km | Sep 11, 10:47 UTC | 151 km WSW of Adak, Alaska |
| M3.4 | 32 km | Sep 15, 16:10 UTC | 160 km WSW of Adak, Alaska |
| M2.5 | 32 km | Sep 11, 11:11 UTC | 135 km SW of Adak, Alaska |
| M2.5 | 38 km | Sep 11, 18:09 UTC | 149 km SW of Adak, Alaska |
Earthquake activity in this area
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Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.