Does White City, UT need an earthquake retrofit?

Under the seismic model IBC and ASCE 7 use for new construction, White City is Category D. High seismic hazard - this is the category most of coastal California, the Pacific Northwest, and other active fault regions fall into. Code mandates significant seismic detailing and restricts irregular structural configurations. This is the category the Brace + Bolt scope (cripple-wall bracing, foundation bolting) is built for. Nationally, White City ranks above 94% of the 4,875 cities in this dataset for seismic hazard - the 94th percentile.

How White City compares

USGS's underlying values for White City: 0.641g peak ground acceleration, 1.421g at short period, 0.513g at 1 second. Within Utah alone, White City ranks 18 of 95 cities by seismic hazard - the 82th percentile in-state. White City has a population of about 5,918.

What a retrofit costs in White City

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 Utah 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 Utah.

Earthquake insurance for a White City home

A White City 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 White City's figures come from

White City's Category D 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 D does and doesn't tell you about White City.