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Consensus-opinion earthquake damage and loss estimates and companion loss estimation and inventory methdology have been developed for existing facilities in California. These data and methodology are needed to provide input into computer simulation methodologies developed by the Federal Emergency Management Agency (FEMA) that estimate the economic impacts of real or hypothetical California earthquakes on the state, region, and nation. Data and methodology developed include: consensus opinion damage-factor estimates (expected physical damage due to ground shaking); methodology to adjust damage-factor estimates to account for construction quality; methodology to estimate the effects of collateral hazards such as ground failure, fault rupture, and inundation; loss-of-function data and methodology to estimate the time it takes to restore damaged facilities to their pre-earthquake usability; methodology to estimate deaths and injuries; and inventory data and methodology for all types of existing industrial, commercial, residential, utility and transportation facilities in California. Damage-factor estimates are provided for Modified Mercalli Intensities VI through XII in the form of Damage Probability Matrices. Seven damage states are considered: 0%, 0-1%, 1-10%, 10-30%, 30-60%, 60-100%, and 100% damage. Loss-of-Function estimates, which specify the time required to restore a facility to 30%, 60%, and 100% of the pre-earthquake usability, are provided for these same seven damage states.

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