Does Charles Town, WV need an earthquake retrofit?

Charles Town carries Seismic Design Category B under USGS's ASCE 7-16 model. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Charles Town in the 41th percentile nationally for seismic hazard - higher than 41% of the 4,875 US cities USGS was checked against here.

Charles Town by the numbers

USGS's underlying values for Charles Town: 0.065g peak ground acceleration, 0.127g at short period, 0.043g at 1 second. Within West Virginia alone, Charles Town ranks 12 of 26 cities by seismic hazard - the 56th percentile in-state. Charles Town has a population of about 8,869.

Retrofit economics for Charles Town

A full earthquake retrofit typically runs $5,000-$10,000 nationally (around $7,000 typical), driven mainly by house size and foundation type, not by West Virginia specifically. California's Earthquake Brace + Bolt grant, which covers a large share of this cost, is a California-only program and does not apply in West Virginia.

What this means for insurance

A Charles Town homeowner cannot buy a standalone earthquake policy in most cases - it is added to an existing homeowners policy as an endorsement, so the place to start is a regular home-insurance quote.

Where Charles Town's figures come from

Charles Town's Category B and every number above trace to USGS's own ASCE 7-16 Design Maps service - see the methodology guide. See the category explainer for what Category B does and doesn't tell you about Charles Town.