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 Custer. The biggest quake on record near Custer — records go back to 1980 — was the M4.0 of Nov 14, 2011, 06:51 UTC: South Dakota.
Latest earthquakes near Custer
| Mag | Location | Local time | Depth | Distance |
|---|---|---|---|---|
| M3.6 | 7 km W of Fairburn, South Dakota | Mar 08, 2025, 08:14 PM | 5 km | 26 km ESE |
| M3.0 | 22 km ESE of Hill View Heights, Wyoming | Jun 28, 2024, 07:40 PM | 10 km | 24 km W |
| M3.4 | 10 km E of Edgemont, South Dakota | Mar 26, 2021, 08:52 AM | 5 km | 52 km S |
| M4.0 | South Dakota | Nov 13, 2011, 11:51 PM | 5 km | 82 km S |
Earthquakes per year near Custer (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.
The 1 biggest earthquakes on record near Custer (M4.0 and up, since 1980)
| Mag | Location | Date (UTC) | Distance |
|---|---|---|---|
| M4.0 | South Dakota | Nov 14, 2011, 06:51 UTC | 82 km |
Nearby places
Colonial Pine Hills, SD (35 km) · Hot Springs, SD (39 km) · Rapid City, SD (46 km) · Rapid Valley, SD (49 km) · Newcastle, WY (50 km) · Blackhawk, SD (49 km)
USGS data fetched Nov 03, 2026, 16:45 UTC · page built Nov 03, 2026, 16:45 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.