S21D:
Earthquake Hazards in Areas Affected by Complex Site Response: The Challenge of Understanding the Site Behavior and the Role of Thick Sediments I

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Session ID#: 32672

Session Description:
Seismic ground shaking depends on the seismic source, propagation path and site response. Site effects are caused by multiple physical phenomena caused by the presence of stratigraphic discontinuities, soil layering, and surface or buried morphology. For instance, deep unconsolidated soils may present strong site response, which can amplify ground motion at some frequencies, but dampen motion at other frequencies. Such environments are also susceptible to extensive soil liquefaction. Although site effects have been well studied over the previous decades, several scientific and engineering issues remain unsatisfactorily answered. Advances in this research field are fundamental to the improvement of anti-seismic codes for design, which often ignores complex, but critical site conditions. This session aims to explore all aspects of earthquake hazard research related to site effects (basin effects, topographic effects, soil nonlinearity, liquefaction, slope instability). We invite studies from both recent earthquakes and historic events.
Primary Convener:  Steven C Jaume, College Charleston, Department of Geology and Environmental Geosciences, Charleston, SC, United States
Conveners:  Sebastiano D'Amico, University of Malta, Department of Geosciences, Msida, Malta, Simone Barani, University of Genoa, Dipartimento di Scienze della Terra dell'Ambiente e della Vita, Genoa, Italy and Marta Pischiutta, Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy
Chairs:  Sebastiano D'Amico, University of Malta, Department of Geosciences, Msida, Malta and Tatiana Bettina Gospe, UCLA, Civil and Environmental Engineering, Los Angeles, CA, United States
OSPA Liaison:  Steven C Jaume, College of Charleston, Charleston, SC, United States

Cross-Listed:
  • NH - Natural Hazards
Index Terms:

7212 Earthquake ground motions and engineering seismology [SEISMOLOGY]
7255 Surface waves and free oscillations [SEISMOLOGY]
7290 Computational seismology [SEISMOLOGY]

Abstracts Submitted to this Session:

The role of complex site and basin response in Wellington city, New Zealand, during the 2016 Mw 7.8 Kaikōura earthquake and other recent earthquake sequences. (Invited) (267142)
Anna E Kaiser1, Graeme McVerry1, Liam Wotherspoon2, Brendon Bradley3, Matt Gerstenberger1, Rafael A Benites1, Zane Bruce1, Sandra Bourguignon1, Silvia Giallini4 and Matthew Hill1, (1)GNS Science, Lower Hutt, New Zealand, (2)The University of Auckland, Auckland, New Zealand, (3)University of Canterbury, Christchurch, New Zealand, (4)CNR National Research Council, Institute of Environmental Geology and Geoengineering, Rome, Italy
Unconventional Damage Patterns in Mashiki town during the 2016 Kumamoto earthquakes (217219)
Masumi Yamada1, James J Mori2, Masayuki Yamada3, Koji Hada3, Yoshinori Fujino3 and Takumi Hayashida4, (1)Kyoto University, Kyoto, Japan, (2)Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan, (3)NEWJEC Inc., Osaka, Japan, (4)Building Research Institute, IISEE, Ibaraki, Japan
Site Response for Micro-Zonation from Small Earthquakes (233848)
Lawrence Hutchings, Lawrence Berkeley National Laboratory, Berkeley, CA, United States, Tatiana Bettina Gospe, UCLA, Civil and Environmental Engineering, Los Angeles, CA, United States, Irene Yung-Wen Liou, University of California Berkeley, Earth & Planetary Sciences, Berkeley, CA, United States and Steve Jarpe, Jarpe Data Solutions, Inc., Prescott Valley, AZ, United States
Seismic Wavefield Imaging of Long-Period Ground Motion in the Tokyo Metropolitan Area, Japan (227082)
Hiromichi Nagao1, Masayuki Kano2, Kenji Nagata3,4, Shin-ichi Ito5, Shin'ichi Sakai6, Shigeki Nakagawa7, Muneo Hori7 and Naoshi Hirata7, (1)Earthquake Research Institute, The University of Tokyo, Research Center for Computational Earth Science, Tokyo, Japan, (2)Graduate School of Science, Tohoku University, Sendai, Miyagi, Japan, (3)Artificial Intelligence Research Center, National Institute of Advanced Industrial Science and Technology, Tokyo, Japan, (4)Presto, Japan Science and Technology Agency, Saitama, Japan, (5)The University of Tokyo, Earthquake Research Institute, Tokyo, Japan, (6)Earthquake Research Institute, The University of Tokyo, Tokyo, Japan, (7)Earthquake Research Institute, University of Tokyo, Tokyo, Japan
Surface topography explains weak ground shaking in Kathmandu valley during the 2015 Gorkha earthquake, Nepal (271454)
Mark van der Meijde, University of Twente, Earth Systems Analysis, Enschede, Netherlands, Md Ashrafuzzaman, Government of the People’s Republic of Bangladesh, Roads and Highways Department,, Sarak Bhaban, Tejgaon, Dhaka-1208, Bangladesh, Norman Kerle, ITC, Enschede, Netherlands, Saad Khan, University of Twente, Enschede, 7500, Netherlands, Muhammad Shafique, National Centre of Excellence in Geology, University of Peshawar, Pakistan, Peshawar, Pakistan and Harald van der Werff, University of Twente, Earth Systems Analysis, Enschede, 7500, Netherlands
The Effect of Sedimentary Basins on Through-Passing Short-Period Surface Waves (Invited) (213367)
Lili Feng, University of Colorado Boulder, Department of Physics, Boulder, CO, United States and Michael H Ritzwoller, University of Colorado Boulder, Department of Physics, Boulder, United States

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