The map shows quakes of M1.5 and up from the last 90 days, the 3 biggest on record, and always the very latest quake — even if it was smaller than M1.5. The list below can include smaller ones the map leaves out. Tap any dot for details.
In the last 30 days, 1 earthquakes of M1.5 or bigger were recorded within 100 km of Sun Prairie, the biggest of them M1.9. The biggest quake on record near Sun Prairie — records go back to 1980 — was the M4.3 of Jan 30, 2016, 19:31 UTC: 19 km E of Lincoln, Montana.
Latest earthquakes near Sun Prairie
| Mag | Location | Local time | Depth | Distance |
|---|---|---|---|---|
| M0.8 | 10 km NW of Helena Valley Northwest, Montana | Nov 02, 2026, 08:08 AM | 11 km | 99 km SSW |
| M1.1 | 14 km NNE of Marysville, Montana | Nov 01, 2026, 01:15 AM | 1 km | 92 km SW |
| M1.3 | 20 km NNE of Marysville, Montana | Oct 30, 2026, 08:17 PM | 10 km | 87 km SW |
| M1.9 | 24 km SSW of Augusta, Montana | Oct 22, 2026, 01:29 PM | 3 km | 85 km WSW |
| M1.6 | 23 km SSE of Augusta, Montana | Oct 04, 2026, 03:18 AM | 15 km | 63 km WSW |
| M3.7 | 7 km NNW of Black Eagle, Montana | Sep 18, 2026, 07:40 AM | 10 km | 12 km ENE |
| M1.5 | 16 km NE of Helena Valley Northwest, Montana | Sep 02, 2026, 05:06 PM | 1 km | 84 km SSW |
| M1.6 | 14 km SSE of Craig, Montana | Sep 01, 2026, 09:17 PM | 10 km | 73 km SSW |
| M2.4 | 21 km SSE of Craig, Montana | Aug 24, 2026, 02:42 AM | 4 km | 78 km SSW |
| M2.0 | 32 km ENE of Helena Valley Northeast, Montana | Jul 22, 2026, 09:59 AM | 16 km | 79 km S |
Earthquakes per year near Sun Prairie (M3.0 and up, within 100 km)
M3.0–3.9 M4.0+
Each bar is one year; taller means more quakes (M3.0 and up). The dark red part is the bigger ones (M4.0+), counted inside the number above each bar — not added on top. These may be felt, depending on how far away and how deep they are. 2026 is not a full year yet — it only counts up to today. Source: USGS Earthquake Catalog.
What the last year looked like near Sun Prairie
Every quake of M1.5 or bigger within 100 km over the last year — 16 in total. A quake of exactly M2.0 counts in the M2.0–3.0 group.
The 3 biggest earthquakes on record near Sun Prairie (M4.0 and up, since 1980)
| Mag | Location | Date (UTC) | Distance |
|---|---|---|---|
| M4.3 | 19 km E of Lincoln, Montana | Jan 30, 2016, 19:31 UTC | 97 km |
| M4.2 | 9 km N of Black Eagle, Montana | Jan 29, 2026, 19:41 UTC | 18 km |
| M4.2 | 23 km W of Augusta, Montana | Mar 17, 1983, 07:25 UTC | 92 km |
Nearby places
Great Falls, MT (14 km) · Malmstrom Air Force Base, MT (23 km) · Choteau, MT (61 km)
USGS data fetched Nov 03, 2026, 15:45 UTC · page built Nov 03, 2026, 16:01 UTC. How to read this page: recent-window counts cover M1.5+ events within 100 km; the 10-year layer is based on M3.0+ and the history layer on M4.0+ since 1980. Recording completeness varies by era and region — small quakes from early decades are under-recorded, so “no record” does not prove “never happened”. Depths are relative to sea level and can be slightly negative for shallow events in elevated terrain. Method: data & methodology.