Within 300 km
Earthquakes near Casper
Casper, Wyoming, United States · population 60,285. Every earthquake within 300 km since 1900.
Past 30 days1M2.5+ within 300 km
Past year6M2.5+
Since 19009M4.5+, 0 of them M6+
How often M6+—none on record nearby
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Magnitude 4.5+ per year since 1900
Within 300 km of Casper. Small quakes were rarely recorded worldwide before the 1970s, so early years show fewer.
The strongest on record
- 5.3 29 km W of Esterbrook, Wyoming Oct 18, 1984
- 5.0 10 km W of Atlantic City, Wyoming Nov 3, 1984
- 5.0 37 km W of Gillette, Wyoming May 29, 1984
- 4.9 41 km W of Gillette, Wyoming Sep 8, 1984
- 4.8 20 km W of Fort Washakie, Wyoming Sep 21, 2013
- 4.8 53 km NE of Kaycee, Wyoming Sep 3, 1976
- 4.8 29 km NW of Jeffrey City, Wyoming Mar 25, 1975
- 4.8 15 km N of Jeffrey City, Wyoming Apr 22, 1973
- 4.5 36 km W of Esterbrook, Wyoming Oct 18, 1984
- 4.2 15 km E of Alzada, Montana Sep 25, 2009
The latest nearby
- 2.5 12 km N of Powell, Wyoming Oct 25, 2026
- 2.6 20 km ENE of Pinedale, Wyoming Jul 18, 2026
- 3.0 12 km SSE of Edgerton, Wyoming Feb 12, 2026
- 3.8 29 km E of Atlantic City, Wyoming Dec 13, 2025
- 2.5 29 km ENE of Atlantic City, Wyoming Dec 11, 2025
- 2.7 15 km SSW of Walden, Colorado Nov 30, 2025
- 2.9 25 km SW of Fort Washakie, Wyoming Sep 28, 2025
- 2.9 37 km NNE of Jeffrey City, Wyoming Sep 11, 2025
- 2.5 28 km WNW of Alcova, Wyoming Jul 21, 2025
- 2.6 9 km ENE of Glendo, Wyoming May 28, 2025
- 2.6 37 km SE of Riverton, Wyoming May 27, 2025
- 2.7 32 km E of Atlantic City, Wyoming May 8, 2025
- 3.6 7 km W of Fairburn, South Dakota Mar 9, 2025
- 2.6 17 km ESE of Lucerne, Wyoming Mar 8, 2025
- 2.7 54 km E of Dutch John, Utah Jan 11, 2025