DeRidder, LA: what USGS's seismic model says

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places DeRidder in Seismic Design Category B: Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. Nationally, DeRidder ranks above 24% of the 4,875 cities in this dataset for seismic hazard - the 24th percentile.

How DeRidder compares

USGS's underlying values for DeRidder: 0.043g peak ground acceleration, 0.089g at short period, 0.055g at 1 second. Within Louisiana alone, DeRidder ranks 24 of 59 cities by seismic hazard - the 60th percentile in-state. DeRidder has a population of about 9,508.

What a retrofit costs in DeRidder

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 Louisiana 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 Louisiana.

Earthquake insurance for a DeRidder home

A DeRidder 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 DeRidder's figures come from

DeRidder'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 DeRidder.