Simi Valley, CA: what USGS's seismic model says

Under the seismic model IBC and ASCE 7 use for new construction, Simi Valley 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. Rank it against the rest of the country and Simi Valley sits at the 97th percentile for seismic hazard among 4,875 US cities.

How Simi Valley compares

USGS's underlying values for Simi Valley: 0.796g peak ground acceleration, 1.897g at short period, 0.652g at 1 second. Within California alone, Simi Valley ranks 108 of 429 cities by seismic hazard - the 75th percentile in-state. Simi Valley has a population of about 125,778.

Retrofit economics for Simi Valley

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

Simi Valley 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 Simi Valley's figures come from

Simi Valley'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.