Logansport, IN: what USGS's seismic model says

Under the seismic model IBC and ASCE 7 use for new construction, Logansport is Category B. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Logansport in the 36th percentile nationally for seismic hazard - higher than 36% of the 4,875 US cities USGS was checked against here.

Where Logansport sits in Indiana

USGS's underlying values for Logansport: 0.059g peak ground acceleration, 0.123g at short period, 0.072g at 1 second. Within Indiana alone, Logansport ranks 92 of 126 cities by seismic hazard - the 27th percentile in-state. Logansport has a population of about 18,168.

Retrofit economics for Logansport

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 Indiana 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 Indiana.

Insuring against this, not just retrofitting

A Logansport 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 Logansport's figures come from

Logansport'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 Logansport.