S13C:
Understanding the Influence of Near-Surface Materials on Seismic Wave Amplitudes: Methods for Measuring, Modeling, and Using Site Response II Posters

Submit an Abstract to this Session



Session ID#: 24054

Session Description:
Changes in seismic wave amplitudes caused by near-surface materials are crucial to many aspects of earthquake hazard assessments. These site response and basin effect estimates are used to adjust amplitudes of recordings used to determine ground-motion prediction equations, to quantify the amplification of ground motions in urban areas and at specific sites, and to extrapolate between bedrock ground motions and observed surface ground motions. This session is intended to explore and compare methods used to understand the influence of shallow strata on ground motions. Contributions can include presentations on theoretical studies and modeling of near-surface effects, development of methods for measuring near-surface material properties, and direct measurements of the influence of shallow materials on ground motions.
Primary Convener:  Thomas L Pratt, U.S. Geological Survey, Geologic Hazards Science Center, Reston, United States
Conveners:  William J Stephenson, USGS Central Region Offices Denver, Denver, United States and Chris H Cramer, University of Memphis, Center for Earthquake Research and Information, Memphis, United States
Chairs:  Thomas L Pratt, U.S. Geological Survey, Geologic Hazards Science Center, Reston, United States, William J Stephenson, U.S. Geological Survey, Denver, CO, United States and Chris H Cramer, University of Memphis, Center for Earthquake Research and Information, Memphis, United States
OSPA Liaison:  Thomas L Pratt, U.S. Geological Survey, Geologic Hazards Science Center, Reston, United States
Co-Organized with:
Seismology, and Near Surface Geophysics

Cross-Listed:
  • NH - Natural Hazards
  • NS - Near Surface Geophysics
Index Terms:

4307 Methods [NATURAL HAZARDS]
7212 Earthquake ground motions and engineering seismology [SEISMOLOGY]

Abstracts Submitted to this Session:

Near Surface Seismic Hazard Characterization in the Presence of High Velocity Contrasts (263585)
Gabriel Gribler, Boise State University, Boise, ID, United States, Dylan Mikesell, Boise State University, Geosciences, Boise, ID, United States and Lee M Liberty, Boise State Univ, Boise, United States
Comparing horizontal-to-vertical spectral ratios with sediment-to-bedrock spectral ratios in a region with a thin layer of unconsolidated sediments (232940)
Lisa S Schleicher, Independent Researcher, Rockville, MD, United States and Thomas L Pratt, USGS, Reston, VA, United States
Non-Invasive Seismic Methods for Earthquake Site Classification Applied to Ontario Bridge Sites (229359)
Alex Bilson Darko1, Sheri Molnar1 and Abouzar Sadrekarimi2, (1)University of Western Ontario, Earth Sciences, London, ON, Canada, (2)Western University, Civil and Environmental Engineering, London, ON, Canada
Vs30 From Multi-Method Site Characterization Approach at Seismograph Locations in the Fairview, Oklahoma Region (208572)
William J Stephenson, USGS Central Region Offices Denver, Denver, United States, Jack K Odum, USGS, Denver, CO, United States, Daniel E McNamara, USGS Geologic Hazards Science Center, Golden, CO, United States and Robert H WIlliams, USGS Geologic Hazards Science Center Denver, Denver, CO, United States
Comparison of Seismic Sources and Frequencies in West Texas (261621)
Galen Kaip, University of Texas at El Paso, Department of Earth, Environmental, and Resource Sciences, El Paso, United States, Steven H Harder, University of Texas at El Paso, Geological Sciences, El Paso, TX, United States and Marianne S. Karplus, University of Texas at El Paso, Department of Geological Sciences, El Paso, TX, United States
Improvement of geological subsurface structure models for Kanto area, Japan, based on records of microtremor array and earthquake observations (271102)
Atsushi Wakai1, Shigeki Senna1, Kaoru Jin1, Ikuo Cho2, Hisanori Matsuyama3 and Hiroyuki Fujiwara1, (1)National Research Institute for Earth Science and Disaster Resilience, Tsukuba, Japan, (2)National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan, (3)OYO Corporation, Tsukuba, Japan
Shallow Vs Structure Accross Hayward Fault Zone Inferred from Multichannel Analysis of Surface Waves (MASW) (269015)
Ian Scott Richardson1, Luther M Strayer2, Rufus Catchings3, Joanne H Chan4, Adrian McEvilly5, Mark Goldman6, Coyn Criley3 and Robert R Sickler3, (1)California State University East Bay, Earth & Environmental Sciences, Hayward, CA, United States, (2)California State University East Bay, Department of Earth and Environmental Sciences, Hayward, United States, (3)U.S. Geological Survey, Earthquake Science Center, Moffett Field, United States, (4)U.S. Geological Survey, Earthquake Science Center, Mountain View, CA, United States, (5)California State University East Bay, Earth and Environmental Sciences, Hayward, CA, United States, (6)U.S. Geological Survey, Earthquake Science Center, Mountain View, United States
Comparison of Earthquake Damage Patterns and Shallow-Depth Vs Structure Across the Napa Valley, Inferred From Multichannel Analysis of Surface Waves (MASW) and Multichannel Analysis of Love Waves (MALW) Modeling of Basin-Wide Seismic Profiles (232594)
Joanne H Chan1, Rufus Catchings2, Luther M Strayer3, Mark Goldman4, Coyn Criley2, Robert R Sickler2 and John Boatwright5, (1)U.S. Geological Survey, Earthquake Science Center, Mountain View, CA, United States, (2)U.S. Geological Survey, Earthquake Science Center, Moffett Field, United States, (3)California State University East Bay, Department of Earth and Environmental Sciences, Hayward, United States, (4)U.S. Geological Survey, Earthquake Science Center, Mountain View, United States, (5)U.S. Geological Survey, Earthquake Science Center, Menlo Park, CA, United States
Investigating Sedimentary Basin Effects in the Puget Lowland: Observations and 3D Ground Motion Simulations (253531)
Mika Thompson, University of Washington Seattle Campus, Earth and Space Sciences, Seattle, WA, United States and Prof. John Emilio Vidale, Univ Washington, Seattle, WA, United States
Short-Distance Variation of Long-Period Strong Ground Motion Amplitudes — Preliminary Numerical Experiments toward Understanding of Cause and Simplified Prediction (249343)
Ken Hatayama, National Research Institute of Fire and Disaster, Tokyo, Japan

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