United States
Earthquakes in Wyoming
ShareUSGS recorded 28 earthquakes in and around Wyoming in the last 30 days and 695 in the last year, counting everything of magnitude 1.0 and above. The strongest in that year measured M 3.9.
- Depth
- When (UTC)
- Local time
- Coordinates
Recent earthquakes in and around Wyoming
Last 30 days, newest first as of 2026-09-23 05:14 UTC
| Magnitude | Location | Depth | When (UTC) |
|---|---|---|---|
| M 1.5 | 37 km S of Silver Gate, Montana | 13.7 km deep | 2026-09-21 20:33 UTC |
| M 0.5 | 21 km ENE of West Yellowstone, Montana | 4.1 km deep | 2026-09-21 09:44 UTC |
| M 0.9 | 41 km SSE of Mammoth, Wyoming | 5.3 km deep | 2026-09-21 05:54 UTC |
| M 0.4 | 17 km SSW of Mammoth, Wyoming | 4.9 km deep | 2026-09-21 03:51 UTC |
| M 1.6 | 22 km SSW of Mammoth, Wyoming | 5.1 km deep | 2026-09-20 06:15 UTC |
| M 0.4 | 23 km SSW of Mammoth, Wyoming | 4.0 km deep | 2026-09-16 18:11 UTC |
| M 1.1 | 22 km SSW of Mammoth, Wyoming | 4.5 km deep | 2026-09-16 13:09 UTC |
| M 0.6 | 20 km SSW of Mammoth, Wyoming | 4.9 km deep | 2026-09-16 12:44 UTC |
| M 0.5 | 20 km SSW of Mammoth, Wyoming | 4.6 km deep | 2026-09-16 12:40 UTC |
| M 1.3 | 23 km SSW of Mammoth, Wyoming | 4.9 km deep | 2026-09-16 12:34 UTC |
| M 0.6 | 22 km SSW of Mammoth, Wyoming | 4.8 km deep | 2026-09-16 10:34 UTC |
| M 0.2 | 44 km SE of Mammoth, Wyoming | 2.6 km deep | 2026-09-16 02:04 UTC |
| M 0.5 | 43 km SE of Mammoth, Wyoming | 3.4 km deep | 2026-09-16 02:01 UTC |
| M 0.3 | 43 km SE of Mammoth, Wyoming | 2.2 km deep | 2026-09-16 02:00 UTC |
| M 3.4 | 3 km NNW of Little America, Wyoming | at the surface | 2026-09-15 04:33 UTC |
| M 1.0 | 23 km SSW of Mammoth, Wyoming | 7.8 km deep | 2026-09-14 11:15 UTC |
| M 0.3 | 18 km NE of West Yellowstone, Montana | 7.6 km deep | 2026-09-13 04:23 UTC |
| M 0.8 | 56 km NE of Kelly, Wyoming | 4.1 km deep | 2026-09-12 06:15 UTC |
| M 3.8 | 22 km NE of Granger, Wyoming | 3.8 km deep | 2026-09-12 05:25 UTC |
| M 0.9 | 43 km SSE of Mammoth, Wyoming | 2.2 km deep | 2026-09-10 17:48 UTC |
| M 1.4 | 38 km SSE of Mammoth, Wyoming | 5.1 km deep | 2026-09-09 13:02 UTC |
| M 1.8 | 25 km SSW of Mammoth, Wyoming | 4.7 km deep | 2026-09-08 09:39 UTC |
| M 1.1 | 24 km SSW of Mammoth, Wyoming | 2.0 km deep | 2026-09-08 09:36 UTC |
| M 1.3 | 26 km SSW of Mammoth, Wyoming | 4.8 km deep | 2026-09-07 19:19 UTC |
| M 0.8 | 30 km SE of Mammoth, Wyoming | 3.7 km deep | 2026-09-07 12:07 UTC |
| M 2.7 | 57 km NE of Kelly, Wyoming | 7.3 km deep | 2026-09-07 07:43 UTC |
| M 3.4 | 57 km NE of Kelly, Wyoming | 6.9 km deep | 2026-09-07 04:25 UTC |
| M 0.4 | 41 km SSE of Mammoth, Wyoming | 2.2 km deep | 2026-09-07 02:51 UTC |
| M 0.7 | 36 km SSE of Mammoth, Wyoming | 5.2 km deep | 2026-09-06 18:11 UTC |
| M 1.4 | 13 km NE of West Yellowstone, Montana | 10.1 km deep | 2026-09-05 14:19 UTC |
| M 1.4 | 24 km SSE of West Yellowstone, Montana | 3.9 km deep | 2026-09-05 03:03 UTC |
| M 1.6 | 19 km SSW of Mammoth, Wyoming | 6.7 km deep | 2026-09-04 01:01 UTC |
| M 0.9 | 20 km ENE of West Yellowstone, Montana | 3.1 km deep | 2026-09-03 18:15 UTC |
| M 0.8 | 20 km ENE of West Yellowstone, Montana | 5.5 km deep | 2026-09-03 09:36 UTC |
| M 0.7 | 20 km ENE of West Yellowstone, Montana | 5.2 km deep | 2026-09-03 07:43 UTC |
| M 3.0 | 2 km NNW of Little America, Wyoming | at the surface | 2026-09-03 04:32 UTC |
| M 0.6 | 29 km S of Mammoth, Wyoming | 6.0 km deep | 2026-09-02 04:13 UTC |
| M 0.2 | 47 km SSE of Mammoth, Wyoming | 4.3 km deep | 2026-09-01 04:42 UTC |
| M 1.2 | 46 km SSE of Mammoth, Wyoming | 4.5 km deep | 2026-09-01 02:09 UTC |
| M 1.5 | 62 km ESE of West Yellowstone, Montana | 4.9 km deep | 2026-08-31 23:38 UTC |
The largest on record in and around Wyoming
Since 1900, when the instrumental record becomes usable. The largest is M 6.3 at 22 km SW of Mammoth, Wyoming on 1959-08-18: strong: damaging in populated areas.
Largest since 1900 USGS
| Magnitude | Location | Date | Depth |
|---|---|---|---|
| M 6.3 | 22 km SW of Mammoth, Wyoming | 1959-08-18 | 10.0 km deep |
| M 6.0 | 21 km E of West Yellowstone, Montana | 1959-08-19 | 5.0 km deep |
| M 5.9 | 26 km SSE of Mammoth, Wyoming | 1975-06-30 | 7.0 km deep |
| M 5.8 | 4 km SSE of Auburn, Wyoming | 1994-02-03 | 7.9 km deep |
| M 5.7 | 13 km SSW of Mammoth, Wyoming | 1959-08-18 | 15.0 km deep |
| M 5.5 | 25 km SSW of Mammoth, Wyoming | 1976-12-08 | 5.0 km deep |
| M 5.3 | 24 km ENE of West Yellowstone, Montana | 1976-10-19 | 4.0 km deep |
| M 5.3 | 20 km S of Mammoth, Wyoming | 1976-10-19 | 5.0 km deep |
| M 5.3 | 29 km W of Esterbrook, Wyoming | 1984-10-18 | 33.0 km deep |
| M 5.2 | 8 km SE of Little America, Wyoming | 1995-02-03 | at the surface |
How these numbers were counted
Counts include every earthquake of magnitude 1.0 and above that USGS located in and around Wyoming. The search is a latitude and longitude rectangle covering Wyoming. No region is a rectangle, so events just outside the border can appear; each row shows the location text USGS published, which names the nearest town. Full method, including why counts from different places are not comparable.
Source: USGS Earthquake Hazards Program (FDSN event service). Retrieved 2026-09-23. Public domain.