Does Chino Valley, AZ need an earthquake retrofit?

Under the seismic model IBC and ASCE 7 use for new construction, Chino Valley is Category C. Moderate seismic hazard. Code adds irregular-building restrictions and requires bracing of some nonstructural components (e.g. tall shelving, water heaters) in addition to structural detailing. That puts Chino Valley in the 75th percentile nationally for seismic hazard - higher than 75% of the 4,875 US cities USGS was checked against here.

Chino Valley by the numbers

USGS's underlying values for Chino Valley: 0.155g peak ground acceleration, 0.351g at short period, 0.109g at 1 second. Within Arizona alone, Chino Valley ranks 4 of 57 cities by seismic hazard - the 95th percentile in-state. Chino Valley has a population of about 13,911.

Bracing and bolting: the actual cost

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 Arizona 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 Arizona.

Earthquake insurance for a Chino Valley home

A Chino Valley 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 Chino Valley's figures come from

Chino Valley's Category C 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 C does and doesn't tell you about Chino Valley.