The map shows quakes of M1.5 and up from the last 90 days, the 4 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 Casper. The biggest quake on record near Casper — records go back to 1980 — was the M5.3 of Oct 18, 1984, 15:30 UTC: 29 km W of Esterbrook, Wyoming.
Latest earthquakes near Casper
| Mag | Location | Local time | Depth | Distance |
|---|---|---|---|---|
| M3.0 | 12 km SSE of Edgerton, Wyoming | Feb 12, 2026, 12:54 AM | 10 km | 49 km N |
| M3.8 | 12 km NW of Rolling Hills, Wyoming | Aug 01, 2021, 09:50 PM | 10 km | 34 km ENE |
| M3.2 | 16 km NW of Rolling Hills, Wyoming | Jul 22, 2020, 01:11 PM | 34 km | 29 km ENE |
| M3.2 | 16 km S of Casper Mountain, Wyoming | Aug 22, 2016, 04:53 AM | 5 km | 31 km S |
| M3.1 | 18 km SSW of Midwest, Wyoming | Nov 30, 2015, 08:16 AM | 5 km | 44 km N |
| M4.2 | 21 km E of Antelope Hills, Wyoming | Oct 19, 1996, 07:27 AM | 5 km | 32 km NE |
| M4.5 | 36 km W of Esterbrook, Wyoming | Oct 18, 1984, 09:57 AM | 33 km | 70 km SE |
| M5.3 | 29 km W of Esterbrook, Wyoming | Oct 18, 1984, 09:30 AM | 33 km | 73 km SE |
| M4.0 | 36 km WSW of Esterbrook, Wyoming | Feb 13, 1983, 06:44 AM | 5 km | 85 km SE |
Earthquakes per year near Casper (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 Casper
Every quake of M1.5 or bigger within 100 km over the last year — 1 in total. A quake of exactly M2.0 counts in the M2.0–3.0 group.
The 4 biggest earthquakes on record near Casper (M4.0 and up, since 1980)
| Mag | Location | Date (UTC) | Distance |
|---|---|---|---|
| M5.3 | 29 km W of Esterbrook, Wyoming | Oct 18, 1984, 15:30 UTC | 73 km |
| M4.5 | 36 km W of Esterbrook, Wyoming | Oct 18, 1984, 15:57 UTC | 70 km |
| M4.2 | 21 km E of Antelope Hills, Wyoming | Oct 19, 1996, 13:27 UTC | 32 km |
| M4.0 | 36 km WSW of Esterbrook, Wyoming | Feb 13, 1983, 13:44 UTC | 85 km |
Nearby places
Glenrock, WY (36 km) · Douglas, WY (77 km) · Wright, WY (119 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.