Wylie, TX: what USGS's seismic model says

Wylie 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. Nationally, Wylie ranks above 33% of the 4,875 cities in this dataset for seismic hazard - the 33th percentile.

How Wylie compares

USGS's underlying values for Wylie: 0.054g peak ground acceleration, 0.111g at short period, 0.058g at 1 second. Within Texas alone, Wylie ranks 65 of 384 cities by seismic hazard - the 83th percentile in-state. Wylie has a population of about 62,954.

Bracing and bolting: the actual cost

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 Texas 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 Texas.

Insuring against this, not just retrofitting

A Wylie 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 Wylie's figures come from

Wylie'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 Wylie.