The Oregon Resilience Plan – Critical and Essential Buildings – February 2013 91 <br /> <br /> <br /> <br />Figure 4.8: This residential building shifted on its foundation after the 1989 M 7.1 Loma Prieta, California earthquake. (Source: NOAA/NGDC, C. <br />Stover, U.S. Geological Survey) <br /> <br />Estimated State of Recovery <br />Using statistical data from FEMA’s HAZUS program, the task group reviewed estimated damage data for <br />single-family residences. The average estimated recovery duration for residences on the coast was less <br />than 30 days, which may be low considering the intensity and duration of ground shaking that will likely <br />result from a Cascadia subduction zone event in this area. In the valley, the estimated recovery duration <br />is 72 hours, which again may underestimate the damage. The eastern zone is expected to have <br />negligible damage (again based on the Hazus estimates). These results are compared with a target state <br />of recovery of 30 days, which is based on the need for shelter as an essential part of disaster recovery <br />and resilience. <br />The recovery time of multifamily housing was not reviewed by the task group. Recovery time for smaller <br />light wood framed buildings will be similar to single family homes. Larger buildings of other construction <br />types will have longer recovery times. The loss of low income multifamily housing will affect economic <br />recovery. <br />Sector Specific Recommendations <br />Improving existing structures will require significant education of homeowners, who need to understand <br />the risks, the potential costs, and the steps necessary to evaluate and correct deficiencies. Additionally, <br />common structural deficiencies should be noted during home inspections at the time of purchase. It is