San Juan, TX: what USGS's seismic model says

San Juan carries Seismic Design Category A under USGS's ASCE 7-16 model. Lowest seismic design category. Building code requires no seismic-specific detailing here beyond ordinary construction practice. Nationally, San Juan ranks above 1% of the 4,875 cities in this dataset for seismic hazard - the 1th percentile.

San Juan by the numbers

The raw figures: peak ground acceleration 0.019g, short-period spectral response 0.042g, 1-second spectral response 0.013g. Among 384 Texas cities in this dataset, San Juan ranks 368 for seismic hazard, the 4th percentile within the state. About 37,341 people live in San Juan, Texas.

What a retrofit costs in San Juan

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 San Juan 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 San Juan address.

More on how this number was built

The methodology guide covers exactly how USGS's public design-maps API produced San Juan'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.