QuakeIndex

Seismic zone · Virginia

Central Virginia seismic zone

not measuredhow fast it slips
< 15,000 yearssince it last broke the surface
2quakes 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

Too quiet to rank: fewer than half a year's worth of weeks with any M1.5+ quake within 5 km, in ten years. A single quake here would read as "unusual", so we do not score it.

Computed from the USGS catalogue · a description of the past, not a forecast · method

The Central Virginia seismic zone as mapped at the surface (glowing), with the other mapped faults nearby, 2 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 10 km S of Louisa, Virginia
    2020-02-03 · 9 km from the trace
  2. M 2.6 6 km ENE of Goochland, Virginia
    2017-03-13 · 4 km from the trace

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.