- journal_title：Bulletin of the Seismological Society of America
- Contributor：J. Gomberg ; B. Waldron ; E. Schweig ; H. Hwang ; A. Webbers ; R. VanArsdale ; K. Tucker ; R. Williams ; R. Street ; P. Mayne ; W. Stephenson ; J. Odum ; C. Cramer ; R. Updike ; S. Hutson ; M. Bradley
- Publisher：Seismological Society of America
- Date：2003-
- Format：text/html
- Language：en
- Identifier：10.1785/0120020164
- journal_abbrev：Bulletin of the Seismological Society of America
- issn：0037-1106
- volume：93
- issue：3
- firstpage：986
- section：Articles
We have derived a new three-dimensional model of the lithologic structure beneath the city of Memphis, Tennessee, and examined its correlation with measured shear-wave velocity profiles. The correlation is sufficiently high that the better-constrained lithologic model may be used as a proxy for shear-wave velocities, which are required to calculate site-amplification for new seismic hazard maps for Memphis. The lithologic model and its uncertainties are derived from over 1200 newly compiled well and boring logs, some sampling to 500 m depth, and a movingleast-squares algorithm. Seventy-six new shear-wave velocity profiles have been measured and used for this study, most sampling to 30 m depth or less. All log and velocity observations are publicly available via new web sites.