Earthquake Hazards Program

Seismic Velocities from High-Resolution Surface-Seismic Imaging at Six ANSS Sites near Memphis, Tennessee

By Robert A. Williams, William J. Stephenson, Jack K. Odum, and David M. Worley

 

Christian Brothers High School, Memphis, Tennessee: CBHT
P- and S-wave Refraction/Reflection Data
P-wave Data
SPREAD LENGTH = 178.0 m
INPUT DATA
LAYER  APPARENT APPARENT  INTERCEPT  INTERCEPT
VEL., A  VEL., B  TIMES, A   TIMES, B
1      312.0    312.0     .000       .000
2      501.0    376.0     .012       .014
3     1732.0   1550.0     .085       .081
COMPUTED STRUCTURE
LAYER  VELOCITY  THICKNESS A  THICKNESS B  DIP  DEPTH A  DEPTH B
1       312.0       2.8         3.3              2.8       3.3
2       424.6      14.8        13.3       8.8   17.6      16.6
3      1620.4                            -2.6
S-wave Data
SPREAD LENGTH =178.0 m
INPUT DATA
LAYER  APPARENT APPARENT  INTERCEPT  INTERCEPT
VEL., A  VEL., B  TIMES, A   TIMES, B
1      140.0    140.0     .000       .000
2      168.0    213.0     .024       .038
3      294.0    302.0     .127       .101
4      398.0    398.0     .248       .248
	Layer 4 not observed from west direction
COMPUTED STRUCTURE
LAYER  VELOCITY  THICKNESS A  THICKNESS B  DIP  DEPTH A  DEPTH B
1       140.0       2.6         4.1              2.6       4.1
2       186.2      11.4         6.0      -7.7   13.9      10.0
3       294.8      23.6        30.5       3.4   37.5      40.5
4        394.4                            3.0

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U.S. Department of the Interior | U.S. Geological Survey URL: https://pubsdata.usgs.gov/pubs/of/2003/ofr-03-218/cbhs.html Questions or Assistance: USGS Web Contact Page Last Modified: Sat Jan 12 23:04 EDT 2013

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