Chubbuck, ID: what USGS's seismic model says

Under the seismic model IBC and ASCE 7 use for new construction, Chubbuck 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. Nationally, Chubbuck ranks above 81% of the 4,875 cities in this dataset for seismic hazard - the 81th percentile.

How Chubbuck compares

USGS's underlying values for Chubbuck: 0.186g peak ground acceleration, 0.425g at short period, 0.145g at 1 second. Within Idaho alone, Chubbuck ranks 5 of 36 cities by seismic hazard - the 89th percentile in-state. Chubbuck has a population of about 16,577.

What a retrofit costs in Chubbuck

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 Idaho 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 Idaho.

What this means for insurance

A Chubbuck 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 Chubbuck's figures come from

Chubbuck'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 Chubbuck.