Eagle's Seismic Design Category, explained

Eagle carries Seismic Design Category C under USGS's ASCE 7-16 model. 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. Nationally, Eagle ranks above 78% of the 4,875 cities in this dataset for seismic hazard - the 78th percentile.

How Eagle compares

USGS's underlying values for Eagle: 0.212g peak ground acceleration, 0.349g at short period, 0.08g at 1 second. Within Colorado alone, Eagle ranks 6 of 79 cities by seismic hazard - the 94th percentile in-state. Eagle has a population of about 7,349.

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 Colorado 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 Colorado.

Insuring against this, not just retrofitting

A Eagle 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 Eagle's figures come from

Eagle'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 Eagle.