Iowa Colony, TX: what USGS's seismic model says

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Iowa Colony in Seismic Design Category A: Lowest seismic design category. Building code requires no seismic-specific detailing here beyond ordinary construction practice. That puts Iowa Colony in the 11th percentile nationally for seismic hazard - higher than 11% of the 4,875 US cities USGS was checked against here.

How Iowa Colony compares

The raw figures: peak ground acceleration 0.031g, short-period spectral response 0.065g, 1-second spectral response 0.037g. Among 384 Texas cities in this dataset, Iowa Colony ranks 258 for seismic hazard, the 33th percentile within the state. About 17,240 people live in Iowa Colony, Texas.

Bracing and bolting: the actual cost

Outside California, no state-level retrofit grant equivalent to Brace + Bolt could be found for Texas. A typical retrofit still runs $5,000-$10,000 nationally, about $7,000 for a common single-family job.

Earthquake insurance for a Iowa Colony home

Outside California, earthquake coverage is typically sold as an endorsement added to a standard homeowners policy, not a separate product - worth asking about directly when getting a home-insurance quote for a Iowa Colony address.

More on how this number was built

The methodology guide covers exactly how USGS's public design-maps API produced Iowa Colony's numbers. The guide to what a Seismic Design Category actually means covers why a category is never a substitute for an engineer's assessment of one specific house.