M4.0 earthquake — 85 km SSW of Nikolski, Alaska
An magnitude 4.0 earthquake occurred 85 km SSW of Nikolski, Alaska on Sep 19, 2026 at 12:44 UTC. The epicenter was at a depth of 41 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 | M4.0 |
|---|---|
| Depth | 40.5 km |
| Coordinates | 52.251, -169.427 |
| Time | Sep 19, 12:44 UTC |
| Location | 85 km SSW of Nikolski, Alaska |
| USGS event ID | us7000tikp |
What this magnitude typically means
Light earthquakes are felt by most people nearby but rarely cause damage. Distance, depth, and soil type determine whether a quake feels sharp or barely noticeable. 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 | 12 km | Sep 13, 21:02 UTC | 76 km SSW of Nikolski, Alaska |
| M2.7 | 13 km | Sep 13, 20:40 UTC | 88 km SSW of Nikolski, Alaska |
| M3.8 | 19 km | Sep 18, 01:07 UTC | 95 km SSW of Nikolski, Alaska |
| M2.9 | 23 km | Sep 15, 08:42 UTC | 97 km SSW of Nikolski, Alaska |
| M2.7 | 32 km | Sep 14, 22:51 UTC | 111 km SSW of Nikolski, Alaska |
| M3.6 | 59 km | Sep 18, 16:56 UTC | 47 km WSW of Nikolski, Alaska |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.