Earthquake · Reviewed by USGS
M3.1 earthquake 20 km N of Heron, Montana
A magnitude 3.1 earthquake struck 20 km N of Heron, Montana at Nov 21, 2025, 21:24 UTC, at a depth of 0 km. The epicentre was 90 km (56 mi) NE of Coeur d'Alene.
Details
| Magnitude | 3.1 ml |
|---|---|
| Time | Nov 21, 2025, 21:24 UTC |
| Depth | 0.0 km |
| Coordinates | 48.243, -115.918 |
| 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.