QuakeIndex

Fault · Arizona, Utah

Sevier/Toroweap fault

250 kmlong (155 mi), as mapped
< 0.2 mm/yrhow fast it slips
< 15,000 yearssince it last broke the surface
10quakes of M2.5+ within 10 km since 2016

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 4 sections: Sevier section, central Toroweap section, northern Toroweap section, southern Toroweap 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

Hurricane faultWashington faultBig Chino faultSan Francisco Mountains (west side) faultCricket Mountains (west side) faultBeaver Basin faultsMineral Mountains (west side) faultsCedar City-Parowan monocline (and faults)Enoch graben faultsParowan Valley faultsSeligman faultAnnabella graben faults
The Sevier/Toroweap fault as mapped at the surface (glowing), with the other mapped faults nearby, 10 of the M2.5+ earthquakes within 10 km of it since 2016 (dots), . Traces: USGS Quaternary Fault and Fold Database. Historic epicentres are estimates.

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

  1. M 3.0 20 km ENE of Panguitch, Utah
    2026-05-04 · 9 km from the trace
  2. M 3.0 19 km ENE of Panguitch, Utah
    2026-04-28 · 8 km from the trace
  3. M 2.9 29 km S of Centennial Park, Arizona
    2026-03-18 · 7 km from the trace
  4. M 2.6 39 km S of Centennial Park, Arizona
    2021-01-02 · 9 km from the trace
  5. M 3.4 24 km S of Centennial Park, Arizona
    2020-07-25 · 9 km from the trace
  6. M 3.1 10 km N of Moccasin, Arizona
    2020-06-24 · 2 km from the trace

Neighbouring faults

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.