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Lithology and shear-wave velocity in Memphis, Tennessee

Bulletin of the Seismological Society of America

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Abstract

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 moving-least-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.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Lithology and shear-wave velocity in Memphis, Tennessee
Series title:
Bulletin of the Seismological Society of America
Volume
93
Issue:
3
Year Published:
2003
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Bulletin of the Seismological Society of America
First page:
986
Last page:
997
Number of Pages:
12