Pearl's Seismic Design Category, explained

Under the seismic model IBC and ASCE 7 use for new construction, Pearl 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 Pearl sits at the 42th percentile for seismic hazard among 4,875 US cities.

How Pearl compares

USGS's underlying values for Pearl: 0.066g peak ground acceleration, 0.138g at short period, 0.082g at 1 second. Within Mississippi alone, Pearl ranks 38 of 61 cities by seismic hazard - the 38th percentile in-state. Pearl has a population of about 28,458.

Retrofit economics for Pearl

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 Mississippi 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 Mississippi.

What this means for insurance

A Pearl 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 Pearl's figures come from

Pearl'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 Pearl.