Earthquake · Reviewed by USGS
M3.7 earthquake 7 km NNW of Black Eagle, Montana
A magnitude 3.7 earthquake struck 7 km NNW of Black Eagle, Montana at Sep 18, 2026, 13:40 UTC, at a depth of 10 km. The epicentre was 9 km (6 mi) NNW of Great Falls. 176 people reported feeling it to USGS.
Details
| Magnitude | 3.7 ml |
|---|---|
| Time | Sep 18, 2026, 13:40 UTC |
| Depth | 10.0 km |
| Coordinates | 47.581, -111.333 |
| Felt reports | 176 |
| Tsunami flag | None |
| Source | USGS event page |
02 — Around it
Other earthquakes within 100 km
| Magnitude | Location | Distance | Depth | Time |
|---|---|---|---|---|
| 1.9 | 24 km SSW of Augusta, Montana | 97 km / 60 mi | depth 3 km | |
| 1.6 | 23 km SSE of Augusta, Montana | 75 km / 47 mi | depth 15 km |
USGS can revise magnitude and location after the first report. See magnitude vs intensity and aftershocks.