Home Natural Hazard Management USGS to map fault zones in Virginia that caused 2011 quake

USGS to map fault zones in Virginia that caused 2011 quake

Virginia, US: Scientists with the US Geological Survey (USGS) are planning to map underground faults in Virginia that caused last year’s earthquake. Low-flying airplane carrying instruments that will measure gravitational and magnetic pull at different sites will map the area. The agency said it’s the first time that airborne gravity will be used as a tool in the US to map a seismic hazard.
    
The 5.8-magnitude earthquake on August 23, 2011, was centered in Louisa County.
    
The flight surveys will be conducted in Louisa, Goochland and Fluvanna counties. Depending on weather, the flights could begin on Tuesday and continue until July 20.
    
Data collected during the survey will allow the agency to refine its estimates of the region’s seismic hazard.
    
Source: WRIC