Nevada Earthquake Safety Council Meeting
February 22, 2002
Research Committee Report
by: Craig M. dePolo and James Werle
- Examining the initial structure and membership of the "Research Committee,"
- Reviewing the new NEHRP seismic hazard maps from several perspectives, input fault data, earthquake models of faults, ground-motion attenuation models, and so forth.
- Preliminary maps of potential liquefaction susceptibility for Las Vegas Valley have been prepared by John Criscion, Barbara Luke, and Jim Werle. A paper summarizing initial results, including Burt Slemmons as a coauthor, was submitted to the Annual Symposium on Engineering Geology and Geotechnical Engineering.
- Craig dePolo has been reviewing the fault data set for Nevada compiled by the U.S. Geological Survey. A report detailing recommended edits is being prepared and will be submitted by the end of March.
- Engaging in the development of a Nevada Post-Earthquake Technical Information Clearinghouse plan. A draft document is being upgraded and will be worked on by a small committee. Activity on this plan follows a WSSPC recommendation for states to engage in clearinghouse planning and to host post-earthquake clearinghouses.
- Conducted research and submitted an abstract on a fault exposed in an excavation in North Las Vegas. Evidence for earthquakes includes brittle faulting with offsets of several inches to several feet, and event deposits including a fault scarp colluvial wedge and tectonically ponded silts.