The map shows quakes of M1.5 and up from the last 90 days, the 7 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 Plains, the biggest of them M1.8. The biggest quake on record near Plains — records go back to 1980 — was the M4.7 of Dec 22, 1998, 01:17 UTC: Idaho-Montana border region.
Latest earthquakes near Plains
| Mag | Location | Local time | Depth | Distance |
|---|---|---|---|---|
| M1.0 | 1 km WSW of Wallace, Idaho | Oct 31, 2026, 06:34 AM | 2 km | 80 km W |
| M1.4 | 4 km NE of Bear Dance, Montana | Oct 21, 2026, 06:35 AM | 9 km | 86 km NE |
| M1.8 | 3 km NE of Bear Dance, Montana | Oct 20, 2026, 07:22 PM | 3 km | 85 km NE |
| M1.1 | 2 km E of Bear Dance, Montana | Oct 20, 2026, 03:02 PM | 9 km | 83 km NE |
| M1.4 | 4 km SSE of Alberton, Montana | Oct 18, 2026, 01:29 AM | 8 km | 64 km SSE |
| M1.4 | 16 km NW of Old Agency, Montana | Oct 17, 2026, 06:41 AM | 10 km | 35 km E |
| M-0.0 | 19 km E of Finley Point, Montana | Oct 15, 2026, 01:59 AM | 6 km | 86 km ENE |
| M0.9 | 15 km SE of Condon, Montana | Oct 06, 2026, 01:39 AM | 10 km | 98 km E |
| M1.9 | 2 km NNE of Alberton, Montana | Aug 18, 2026, 11:38 AM | 14 km | 58 km SSE |
| M1.7 | 19 km SW of Marion, Montana | Aug 14, 2026, 07:47 PM | 4 km | 59 km N |
Earthquakes per year near Plains (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 Plains
Every quake of M1.5 or bigger within 100 km over the last year — 17 in total. A quake of exactly M2.0 counts in the M2.0–3.0 group.
The 7 biggest earthquakes on record near Plains (M4.0 and up, since 1980)
| Mag | Location | Date (UTC) | Distance |
|---|---|---|---|
| M4.7 | Idaho-Montana border region | Dec 22, 1998, 01:17 UTC | 64 km |
| M4.1 | 2 km NNW of Kila, Montana | Jun 29, 1995, 18:10 UTC | 81 km |
| M4.1 | 2 km NW of Kila, Montana | May 02, 1995, 19:31 UTC | 82 km |
| M4.1 | 1 km E of Mullan, Idaho | Aug 17, 1994, 06:56 UTC | 67 km |
| M4.1 | 17 km WSW of Belknap, Montana | Aug 01, 1988, 11:34 UTC | 57 km |
| M4.0 | 15 km SSE of Happys Inn, Montana | Jan 20, 1998, 16:33 UTC | 56 km |
| M4.0 | 10 km ESE of Swan Lake, Montana | Apr 01, 1992, 11:33 UTC | 98 km |
Nearby places
Superior, MT (30 km) · Thompson Falls, MT (37 km) · Ronan, MT (59 km)
USGS data fetched Nov 03, 2026, 19:45 UTC · page built Nov 03, 2026, 19:45 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.