M2.8 earthquake — 148 km E of Atka, Alaska
An magnitude 2.8 earthquake occurred 148 km E of Atka, Alaska on Aug 18, 2026 at 20:46 UTC. The epicenter was at a depth of 10 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 | 10.0 km |
| Coordinates | 52.147, -172.036 |
| Time | Aug 18, 20:46 UTC |
| Location | 148 km E of Atka, Alaska |
| USGS event ID | aka2026qiopfk |
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 |
|---|---|---|---|
| M2.9 | 56 km | Aug 19, 11:10 UTC | 199 km E of Atka, Alaska |
| M3.2 | 65 km | Aug 19, 19:31 UTC | 172 km WSW of Nikolski, Alaska |
| M2.5 | 74 km | Aug 18, 02:19 UTC | 86 km ESE of Atka, Alaska |
| M2.7 | 90 km | Aug 19, 18:33 UTC | 71 km ENE of Atka, Alaska |
| M2.6 | 117 km | Aug 18, 03:42 UTC | 92 km SE of Atka, Alaska |
| M2.9 | 129 km | Aug 18, 21:06 UTC | 109 km SSE 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.