February 3, 1994 Earthquake: Afton, Wyoming, United States

Name: February 3, 1994 Earthquake: Afton, Wyoming, United States
Start: 1994-02-03
Location: Afton, Wyoming, United States

February 3, 1994 · M5.8

A magnitude 5.8 earthquake struck Afton, Wyoming, United States on February 3, 1994 at 09:05:04 UTC, 8 km below the surface.

Map

Where it struck, with the other significant earthquakes within 200 km. Circles are sized and colored by magnitude; select one for its page.

The earthquake

Date: February 3, 1994
Time: 09:05:04 UTC
Place: Afton, Wyoming, United States
Magnitude: 5.8 (Mw)
Focal depth: 8 km (5 mi)
Intensity: 7 on the Modified Mercalli scale
Tsunami: None recorded
Epicenter: 42.762° N, 110.976° W
Country: United States

The toll

Damage: Limited (under about $1 million)

Where the literature gives no number, NCEI records a description on a scale of 1 to 4, printed here in its words. Damage is in millions of US dollars of the year of the event, not adjusted for inflation.

What the record says

NCEI’s account, from the sources it cites.

Some damage (VII) in the

Afton-Auburn, Wyoming area and slight damage (VI) at

Fairview, Wyoming. Felt (V) at Alpine, Bedford, Etna,

Grover, Kemmerer and Smoot; (IV) at Big Piney, La Barge

and Thayne, Wyoming. Also felt at Dubois, Evanston,

Green River, Jackson and Rock Springs, Wyoming. Felt

(V) at Bancroft, Bern, Dingle, Franklin, Geneva,

Georgetown, Montpelier, Paris and Wayan; (IV) at Bloomington, Downey, Grace, Lava Hot Springs and Soda

Springs; (III) at Idaho Falls and Pocatello, Idaho.

Felt at Moab, Price, Sandy, Salt Lake City and Vernal,

Utah. Also felt at Grand Junction and Hotchkiss,

Colorado. (reference #1053)

Other significant earthquakes nearby

Within 200 km, the deadliest first.

Significant earthquakes of 1994 The 1900s Every quake the USGS located in 1994 Recent earthquakes near here This day in weather history

Sources

Significant earthquakes from NOAA’s National Centers for Environmental Information, Global Historical Hazard Database, cited as NCEI/WDS, doi:10.7289/V5PN93H7. Public domain. Read 2026-09-24. NCEI earthquake 5376.