Earthquake · Reviewed by USGS
M1.9 earthquake 24 km SSW of Augusta, Montana
A magnitude 1.9 earthquake struck 24 km SSW of Augusta, Montana at Oct 22, 2026, 19:29 UTC, at a depth of 3 km. The epicentre was 89 km (55 mi) NNW of Helena.
Details
| Magnitude | 1.9 ml |
|---|---|
| Time | Oct 22, 2026, 19:29 UTC |
| Depth | 3.4 km |
| Coordinates | 47.309, -112.561 |
| Felt reports | 0 |
| Tsunami flag | None |
| Source | USGS event page |
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Nothing at this magnitude was recorded here in this period. Quiet stretches are normal for most places.
USGS can revise magnitude and location after the first report. See magnitude vs intensity and aftershocks.