M2.9 earthquake — 102 km SW of Adak, Alaska
An magnitude 2.9 earthquake occurred 102 km SW of Adak, Alaska on Aug 18, 2026 at 11:00 UTC. The epicenter was at a depth of 52 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 | M2.9 |
|---|---|
| Depth | 52.3 km |
| Coordinates | 51.364, -177.872 |
| Time | Aug 18, 11:00 UTC |
| Location | 102 km SW of Adak, Alaska |
| USGS event ID | aka2026qhvavz |
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 | 12 km | Aug 19, 10:44 UTC | 102 km WSW of Adak, Alaska |
| M2.9 | 24 km | Aug 19, 01:27 UTC | 118 km WSW of Adak, Alaska |
| M4.1 | 36 km | Aug 19, 08:22 UTC | 138 km SW of Adak, Alaska |
| M2.5 | 89 km | Aug 16, 08:06 UTC | 165 km W of Adak, Alaska |
| M3.4 | 113 km | Aug 21, 01:08 UTC | 70 km SSE of Adak, Alaska |
| M2.8 | 126 km | Aug 18, 17:59 UTC | 224 km WSW 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.