QuakeIndex

Fault · Utah

Cedar City-Parowan monocline (and faults)

25 kmlong (16 mi), as mapped
0.2–1 mm/yrhow fast it slips
< 15,000 yearssince it last broke the surface
9quakes of M2.5+ within 10 km since 2016

In plain English

The two sides move 0.2 to 1 mm a year — 2 to 10 cm every century.

Its most recent surface rupture is younger than 15,000 years.

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

Sevier/Toroweap faultHurricane faultWashington faultSan Francisco Mountains (west side) faultBeaver Basin faultsMineral Mountains (west side) faultsEnoch graben faultsParowan Valley faults
The Cedar City-Parowan monocline (and faults) as mapped at the surface (glowing), with the other mapped faults nearby, 9 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 2.7 0 km S of Summit, Utah
    2026-03-19 · 1 km from the trace
  2. M 2.5 4 km NW of Cedar City, Utah
    2025-10-14 · 4 km from the trace
  3. M 2.7 1 km WSW of Summit, Utah
    2024-06-03 · 2 km from the trace
  4. M 2.7 0 km N of Summit, Utah
    2024-05-24 · 2 km from the trace
  5. M 2.7 3 km NE of Summit, Utah
    2024-04-21 · 2 km from the trace
  6. M 2.7 2 km SSW of Summit, Utah
    2022-05-13 · 0 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.