Carson, CA: what USGS's seismic model says

Carson 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, Carson ranks above 97% of the 4,875 cities in this dataset for seismic hazard - the 97th percentile.

How Carson compares

USGS's underlying values for Carson: 0.747g peak ground acceleration, 1.714g at short period, 0.617g at 1 second. Within California alone, Carson ranks 142 of 429 cities by seismic hazard - the 67th percentile in-state. Carson has a population of about 91,358.

Retrofit economics for Carson

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.

Insuring against this, not just retrofitting

Carson 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 Carson's figures come from

Carson'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.