The map shows quakes of M1.5 and up from the last 90 days, the 1 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, 0 earthquakes of M1.5 or bigger were recorded within 100 km of Ironton. The biggest quake on record near Ironton — records go back to 1980 — was the M4.0 of Nov 18, 2021, 02:53 UTC: 7 km S of Williamsville, Missouri.
Latest earthquakes near Ironton
| Mag | Location | Local time | Depth | Distance |
|---|---|---|---|---|
| M2.4 | 14 km SE of Ellsinore, Missouri | Sep 17, 2026, 04:36 PM | 0 km | 83 km S |
| M2.1 | 12 km ENE of Greenville, Missouri | Aug 10, 2026, 01:43 AM | 8 km | 57 km SSE |
| M2.0 | 14 km SSE of Weingarten, Missouri | Jun 29, 2026, 11:25 PM | 2 km | 45 km ENE |
| M2.9 | 14 km SSW of Williamsville, Missouri | Jun 29, 2026, 10:41 PM | 2 km | 83 km S |
| M2.4 | 7 km W of Williamsville, Missouri | Jun 06, 2026, 02:37 AM | 14 km | 70 km S |
| M2.6 | 12 km E of Williamsville, Missouri | May 28, 2026, 10:58 PM | 5 km | 71 km SSE |
| M2.0 | 6 km SSW of Valmeyer, Illinois | Feb 01, 2026, 08:23 PM | 11 km | 78 km NNE |
| M3.1 | 4 km S of Puxico, Missouri | Sep 05, 2025, 09:37 PM | 6 km | 87 km SSE |
| M3.2 | 10 km N of Van Buren, Missouri | Nov 05, 2022, 01:44 PM | 8 km | 66 km SSW |
| M4.0 | 7 km S of Williamsville, Missouri | Nov 17, 2021, 08:53 PM | 16 km | 77 km S |
Earthquakes per year near Ironton (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 Ironton
Every quake of M1.5 or bigger within 100 km over the last year — 7 in total. A quake of exactly M2.0 counts in the M2.0–3.0 group.
The 1 biggest earthquakes on record near Ironton (M4.0 and up, since 1980)
| Mag | Location | Date (UTC) | Distance |
|---|---|---|---|
| M4.0 | 7 km S of Williamsville, Missouri | Nov 18, 2021, 02:53 UTC | 77 km |
Nearby places
Farmington, MO (27 km) · Fredericktown, MO (30 km) · Centerville, MO (34 km) · Piedmont, MO (50 km)
USGS data fetched Nov 03, 2026, 17:45 UTC · page built Nov 03, 2026, 17:45 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.