Lompoc's Seismic Design Category, explained

Lompoc 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, Lompoc ranks above 91% of the 4,875 cities in this dataset for seismic hazard - the 91th percentile.

How Lompoc compares

USGS's underlying values for Lompoc: 0.514g peak ground acceleration, 1.168g at short period, 0.418g at 1 second. Within California alone, Lompoc ranks 297 of 429 cities by seismic hazard - the 31th percentile in-state. Lompoc has a population of about 43,594.

Bracing and bolting: the actual cost

Cripple-wall bracing and foundation bolting - the scope California's Earthquake Brace + Bolt (EBB) grant funds - typically runs $3,000-$7,000 nationally. Every qualifying household gets a $3,000 base grant, which brings that down to $0-$4,000 out of pocket; income-eligible households ($89,040/year or under) can get up to $10,000 total, covering the retrofit outright in most cases.

Earthquake insurance for a Lompoc home

Lompoc sits in CEA territory, but CEA earthquake coverage is agent-sold only, never direct - so the real first step for a homeowner here is a standard home-insurance quote, then asking that agent about CEA specifically.

Where Lompoc's figures come from

Lompoc's Category D and every number above trace to USGS's own ASCE 7-16 Design Maps service - see the methodology guide. Full Brace + Bolt eligibility rules - beyond what this page can check from a ZIP code alone - are in the retrofit cost and grant guide.