U.S. Department of the Interior U.S. Geological Survey Preliminary Analysis of High- Resolution...
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U.S. Department of the Interior U.S. Geological Survey Preliminary Analysis of High-Resolution P-Wave Seismic Imaging Profiles Acquired Through Reno, Nevada, for Earthquake Hazards Assessment Frary, R.N., Stephenson, W.J., Louie, J.N., Odum, J.K., Maharrey, J.Z., Dhar, M.S., Kent, R.L., Hoffpauir, C.G. University of Nevada Nevada Seismological Laboratory Reno, Nevada http://seismo.unr.edu Geologic Hazards Science Center U.S. Geological Survey Golden, Colorado http:// earthquake.usgs.gov Network for Earthquake Engineering Simulatio University of Texas Austin, Texas http://nees.utexas.edu
description
Line Locations TRK lines ~6.72 km map from GoogleEarth MNZA line ~3.84 km
Transcript of U.S. Department of the Interior U.S. Geological Survey Preliminary Analysis of High- Resolution...
U.S. Department of the InteriorU.S. Geological Survey
Preliminary Analysis of High-Resolution P-Wave Seismic Imaging Profiles Acquired Through Reno, Nevada, for
Earthquake Hazards AssessmentFrary, R.N., Stephenson, W.J., Louie, J.N., Odum, J.K., Maharrey, J.Z., Dhar, M.S., Kent, R.L., Hoffpauir, C.G.
University of NevadaNevada Seismological LaboratoryReno, Nevadahttp://seismo.unr.edu
Geologic Hazards Science CenterU.S. Geological SurveyGolden, Coloradohttp://earthquake.usgs.gov
Network for Earthquake Engineering SimulationUniversity of TexasAustin, Texashttp://nees.utexas.edu
Goals
Western Basin and Range Community Velocity Model
Reno-Carson City Urban Hazards Maps Characterize Truckee Meadows Basin structure
and fault locations
Line LocationsTRK lines ~6.72 km
map from GoogleEarth
MNZA line ~3.84 km
Comparison to Gravity Map
M. Widmer, 2007
Acquisition Parameters
Linear sweep 15-120 Hz CMP (72-fold) acquisition 2-second records 5-m source and receiver
spacing
Truckee River Shot RecordTi
me
(us)
Station 175
Truckee River Processing
AGC (400 ms) Bandpass filter (20-140 Hz) Velocity analysis and
residual statics Post-stack finite difference
time migration FX deconvolution
Truckee River Time-Migrated Section
Tie-in point between two profiles
Preliminary
Truckee River Depth Migration
Tie-in point between two profiles
Preliminary
Manzanita Shot RecordTi
me
(us)
Station 461
Manzanita Processing
AGC (400 ms) Bandpass filter (20-140 Hz) Velocity analysis and
residual statics Post-stack finite difference
time migration Eigenvector filter Adaptive deconvolution
Manzanita Time-Migrated Section
Preliminary
Manzanita Depth Migration
Preliminary
Further Investigation
Additional transects Continued collaboration
Acknowledgements
University of Nevada, Reno students nees@UTexas University of Nevada, Reno Dept. of
Geological Sciences and Engineering Mike Widmer, Washoe County Dept. of Water
Resources
