Does East Lansing, MI need an earthquake retrofit?

Under the seismic model IBC and ASCE 7 use for new construction, East Lansing is Category B. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. Rank it against the rest of the country and East Lansing sits at the 26th percentile for seismic hazard among 4,875 US cities.

How East Lansing compares

USGS's underlying values for East Lansing: 0.045g peak ground acceleration, 0.091g at short period, 0.046g at 1 second. Within Michigan alone, East Lansing ranks 88 of 153 cities by seismic hazard - the 43th percentile in-state. East Lansing has a population of about 48,964.

Retrofit economics for East Lansing

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 Michigan 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 Michigan.

What this means for insurance

A East Lansing 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 East Lansing's figures come from

East Lansing's Category B 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 B does and doesn't tell you about East Lansing.