Near Surface P- and S-Wave Velocity Measurements KD2 Kingdome, Seattle, WA Surface Refraction Data Interpretation: A north-south profile located along the western edge of the railroad tracks on the southeastern side of the former location of the Kingdome, Seattle. This site is in a region that is mapped as fill (Waldron et al., 1962). Waldron, H. W., Liesch, B. A., Mullineaux, D. R., and Crandell, D. R., 1962, Preliminary geologic map of Seattle and vicinity, Washington, U.S. Geological Survey Miscellaneous Geologic Investigations Map I-354, 1:31680. P-vel (m/s) Depth (m) S-vel (m/s) Depth (m) 400 0.00 145 0.00 400 2.0 145 19.0 1050 2.0 390 19.0 1050 30.00 390 30.0 Seismic Recording Parameters Recording system Geometrics StrataView (30 channels activated) Sampling interval 0.001 seconds Record length 1 second Geophones Thirty 4.5-Hz horizontal; thirty 8-Hz vertical Geophone array linear with single phones at 3-m intervals Seismic Source 4.0 kg sledgehammer on metal plate (P-wave); 4.0-kg sledgehammer on wood timber (S-wave) Source array Reversed spreads with multiple off-end shots

P/S Velocity | Site Response | PACNW | Earthquake Hazards | USGS Modified Tuesday, October 30, 2001 by Susan Rhea This URL is: http://earthquake.usgs.gov/regional/pacnw/siteresp/svel/sitemap/kd2/index.html