Does Durant, OK need an earthquake retrofit?

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Durant in Seismic Design Category B: Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. Nationally, Durant ranks above 58% of the 4,875 cities in this dataset for seismic hazard - the 58th percentile.

How Durant compares

USGS's underlying values for Durant: 0.11g peak ground acceleration, 0.201g at short period, 0.072g at 1 second. Within Oklahoma alone, Durant ranks 38 of 75 cities by seismic hazard - the 50th percentile in-state. Durant has a population of about 20,908.

What a retrofit costs in Durant

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 Oklahoma 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 Oklahoma.

What this means for insurance

A Durant 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 Durant's figures come from

Durant'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 Durant.