Earthquake · Reviewed by USGS
M1.4 earthquake 9 km N of Radersburg, Montana
A magnitude 1.4 earthquake struck 9 km N of Radersburg, Montana at Oct 1, 2026, 20:20 UTC, at a depth of -2 km. The epicentre was 46 km (29 mi) SE of Helena.
Details
| Magnitude | 1.4 ml |
|---|---|
| Time | Oct 1, 2026, 20:20 UTC |
| Depth | -2.0 km |
| Coordinates | 46.282, -111.633 |
| Felt reports | 0 |
| Tsunami flag | None |
| Source | USGS event page |
02 — Around it
Other earthquakes within 100 km
| Magnitude | Location | Distance | Depth | Time |
|---|---|---|---|---|
| 2.4 | 20 km SW of Whitehall, Montana | 78 km / 49 mi | depth 2 km | |
| 1.2 | 18 km E of Townsend, Montana | 27 km / 17 mi | depth 13 km | |
| 1.1 | 6 km SSW of Toston, Montana | 22 km / 14 mi | depth 2 km | |
| 2.3 | 6 km SSW of Toston, Montana | 22 km / 14 mi | depth 1 km | |
| 1.7 | 7 km S of Toston, Montana | 24 km / 15 mi | depth 5 km | |
| 1.4 | 5 km WSW of Elliston, Montana | 72 km / 45 mi | depth 16 km | |
| 2.1 | 6 km WSW of Elliston, Montana | 73 km / 45 mi | depth 14 km | |
| 1.5 | 6 km E of Butte, Montana | 70 km / 44 mi | depth -2 km | |
| 2.1 | 15 km ENE of Twin Bridges, Montana | 85 km / 53 mi | depth 4 km | |
| 1.6 | 15 km S of Whitehall, Montana | 71 km / 44 mi | depth 4 km | |
| 1.7 | 8 km W of Townsend, Montana | 4 km / 2 mi | depth -2 km | |
| 1.8 | 5 km E of Butte, Montana | 71 km / 44 mi | depth -2 km | |
| 1.6 | 2 km SE of South Hills, Montana | 39 km / 24 mi | depth -2 km | |
| 1.2 | 5 km SSE of Bozeman, Montana | 87 km / 54 mi | depth 4 km | |
| 1.5 | 8 km W of Townsend, Montana | 3 km / 2 mi | depth -2 km | |
| 1.4 | 6 km E of Butte, Montana | 70 km / 43 mi | depth -2 km | |
| 1.3 | 14 km ESE of Lincoln, Montana | 96 km / 59 mi | depth 9 km | |
| 1.2 | 14 km ESE of Lincoln, Montana | 96 km / 60 mi | depth 9 km | |
| 1.7 | 5 km E of Butte, Montana | 71 km / 44 mi | depth -2 km |
USGS can revise magnitude and location after the first report. See magnitude vs intensity and aftershocks.