Earthquake Engineering Research Institute
Learning From Earthquakes

Rio Dell Damage Report

September 2, 2023

A report on the damage suffered in the city of Rio Dell from the 20 December 2022 (M6.4) and the 1 January 2023 (M5.4) earthquakes is now available. Bruce Maison (M.EERI 1990) presents reconnaissance findings on damage to site-built dwellings, masonry chimneys, mobile homes, and municipal water systems.  The report has 45 pages including over 100 damage photos.  The report can be accessed here (PDF).