QuakeIndex

Seismic zone · Illinois, Missouri

St. Louis-Cape Girardeau liquefaction features

not measuredhow fast it slips
< 15,000 yearssince it last broke the surface
6quakes of M2.5+ within 10 km since 2016

In plain English

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

The St. Louis-Cape Girardeau liquefaction features as mapped at the surface (glowing), with the other mapped faults nearby, 6 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 2.8 1 km NNE of Germantown, Illinois
    2024-03-28 · 2 km from the trace
  2. M 2.5 6 km ENE of Pinckneyville, Illinois
    2024-03-05 · 4 km from the trace
  3. M 2.8 1 km SSW of Peerless Park, Missouri
    2022-04-29 · 0 km from the trace
  4. M 2.6 6 km NNE of Bonne Terre, Missouri
    2019-09-11 · 0 km from the trace
  5. M 2.6 8 km ENE of Bonne Terre, Missouri
    2017-06-06 · 0 km from the trace
  6. M 3.5 5 km SE of New Grand Chain, Illinois
    2016-05-01 · 1 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.