Sylvania, OH: what USGS's seismic model says

Sylvania 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. Rank it against the rest of the country and Sylvania sits at the 43th percentile for seismic hazard among 4,875 US cities.

How Sylvania compares

USGS's underlying values for Sylvania: 0.067g peak ground acceleration, 0.129g at short period, 0.053g at 1 second. Within Ohio alone, Sylvania ranks 166 of 254 cities by seismic hazard - the 35th percentile in-state. Sylvania has a population of about 19,102.

Retrofit economics for Sylvania

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 Ohio 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 Ohio.

What this means for insurance

A Sylvania 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 Sylvania's figures come from

Sylvania'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 Sylvania.