| name | type | date | deads | Depth (m) | latitude (°) | longitude (°) | Magnitude (mw) | injured | administrative división | country | continent | city | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1935 Helena earthquake | Tectonic | 19/10/1935 | 46.5999984741 | -112.0000000000 | Montana | United States | America | Helena Montana | Map |