Fault · Wyoming
Buffalo Fork fault
In plain English
The two sides move less than 0.2 mm a year — under 2 cm a century. Slow faults can still produce large earthquakes, just rarely.
Its most recent surface rupture is younger than 15,000 years.
USGS maps it as 3 sections: middle section, northern section, southern section.
This week vs. its last ten years
0/100
quiet
0 quakes of M1.5+ within 5 km of the trace in the last 7 days — busier than 0% of weeks since 2016. A normal week: 0–0.
Computed from the USGS catalogue · a description of the past, not a forecast · method
Every year since 2016
Earthquakes of M2.5+ with an epicentre within 10 km of the mapped trace. Near is not the same as on: some will have slipped on neighbouring faults.
Most recent near it
- M 2.6 70 km NNE of Kelly, Wyoming
2025-02-11 · 4 km from the trace - M 2.7 54 km NNE of Kelly, Wyoming
2023-08-12 · 8 km from the trace - M 2.8 54 km NNE of Kelly, Wyoming
2023-06-17 · 8 km from the trace - M 3.0 64 km ESE of West Yellowstone, Montana
2023-03-29 · 5 km from the trace - M 2.7 63 km ESE of West Yellowstone, Montana
2021-07-19 · 7 km from the trace - M 2.6 63 km ESE of West Yellowstone, Montana
2021-07-17 · 5 km from the trace
Neighbouring faults
- Eagle Bay fault 3 km away
- East Mount Sheridan faults 12 km away
- Upper Yellowstone Valley faults 15 km away
- Teton fault 30 km away
- Mirror Plateau faults 35 km away
Fault trace, slip rate and age: USGS Quaternary Fault and Fold Database (public domain), simplified for the web. Earthquakes: USGS ComCat. QuakeIndex does not forecast earthquakes; a fault's history describes the past. For early warning use ShakeAlert.