Soil amplification effects were incorporated into HAZUS-99 by the State Civil Defense to include locations of volcanic ash deposits and soil profile type survey data for the island of Hawaii.  In 2004-2005, further studies were conducted to quantify loss reductions and mitigation effectiveness of seismic retrofit; code adoption and enforcement policies; and to support the development of an electronic Earthquake Atlas which will provide loss estimates of other possible event scenarios. 
This project incorporates an updated building inventory along with hazard and modeling improvements by using the observed impacts associated with the Mw 6.7 earthquake near the Big Island of Hawaii on October 15th, 2006 to validate the modeled results produced by the enhanced HAZUS earthquake loss estimation tool.
The final product will incorporate these improvements into HAZUS-MH.

Conversion of Hawaii HAZUS-99 Updates and Methodology

For use in HAZUS-MH & Validation of the HAZUS Earthquake Model Results in Relation to the Hawaii Earthquake Disaster of October 15, 2006
Through a series of studies beginning in 2000, the State of Hawaii Civil Defense has extensively revised the HAZUS-99 inventory information for Hawaii & Maui counties to account for:
1) Code adoption and enforcement policy histories of each county
2) Hawaii building construction types (including single wall construction)
3) The number and locations of specific building types
4) Hawaii construction costs.
Ground motion calculations in HAZUS-99 were significantly enhanced by the State Civil Defense to include data from previous Hawaii earthquakes and a ground motion attenuation function that produces the closest fit to ground motion acceleration data from previous Hawaii County earthquakes.