Evanston, WY: what USGS's seismic model says

Evanston carries Seismic Design Category D under USGS's ASCE 7-16 model. 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, Evanston ranks above 83% of the 4,875 cities in this dataset for seismic hazard - the 83th percentile.

Evanston by the numbers

USGS's underlying values for Evanston: 0.25g peak ground acceleration, 0.535g at short period, 0.178g at 1 second. Within Wyoming alone, Evanston ranks 2 of 16 cities by seismic hazard - the 93th percentile in-state. Evanston has a population of about 11,691.

What a retrofit costs in Evanston

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 Wyoming 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 Wyoming.

Earthquake insurance for a Evanston home

A Evanston 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 Evanston's figures come from

Evanston'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 Evanston.