S22A:
Earthquake Hazards in Areas Affected by Complex Site Response: The Challenge of Understanding the Site Behavior and the Role of Thick Sediments II

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Session ID#: 32678

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:  Marta Pischiutta, Istituto Nazionale di Geofisica e Vulcanologia, Italy, Rome, Italy and Chris H Cramer, University of Memphis, Center for Earthquake Research and Information, Memphis, 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:

Probabilistic and Scenario Seismic and Liquefaction Hazard Analysis of the Mississippi Embayment Incorporating Nonlinear Site Effects (218756)
Chris H Cramer, University of Memphis, Center for Earthquake Research and Information, Memphis, United States and Mahesh S Dhar, University of Memphis, CERI, Memphis, TN, United States
Long-period amplification in deep alluvial basins and consequences for site-specific probabilistic seismic-hazard: the case of Castelleone in the Po Plain (Northern Italy) (251889)
Simone Barani1, Claudia Mascandola2, Marco Massa2 and Daniele Spallarossa1, (1)University of Genoa, Dipartimento di Scienze della Terra dell'Ambiente e della Vita, Genoa, Italy, (2)Istituto Nazionale di Geofisica e Vulcanologia, Milan, Italy
Triple Impedance Contrast but Only a Double Resonance in Charleston, South Carolina (242433)
Steven C Jaume, College of Charleston, Charleston, SC, United States
Re-examining the cause of the “Damage Belt” during the 1995 Kobe Earthquake (270629)
Shinichi Matsushima, Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan and Hiroe Miyake, Earthquake Research Institute, The University of Tokyo, Tokyo, Japan
Impact of Ocean Wave Climate on Double-Frequency Microseisms and Evaluation of Seismic Site Effect in Northern Mississippi, USA (235625)
Zhen Guo, Tongji University, College of Civil Engineering, Shanghai, China, Adnan Aydin, University of Mississippi, Department of Geology and Geological Engineering, University, MS, United States and Mei Xue, Tongji University, State Key Laboratory of Marine Geology, Shanghai, China
A Bayesian-Based Novel Methodology to Generate Reliable Site Response Mapping Sensitive to Data Uncertainties (248785)
Anirban Chakraborty, Graduate School of Engineering, Kyoto University, Kyoto, Japan and Hiroyuki Goto, Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan
Elaboration of a velocity model of the Bogota basin (Colombia) based on microtremors arrays measurements, gravity data, and geological information (272872)
Nelson E Pulido1, Shigeki Senna2, Helber Garcia Mr.3, Santiago Montejo3 and Juan Carlos Reyes4, (1)National Research Institute for Earth Science and Disaster Resilience, Earthquake and Tsunami Research Division, Tsukuba, Japan, (2)National Research Institute for Earth Science and Disaster Resilience, Tsukuba, Japan, (3)Servicio Geologico Colombiano, Bogota, Colombia, (4)Universidad de los Andes, Bogota, Colombia
Ground motion amplification at rock sites: the competing role of topography and fractured rocks in the San Giovanni fault, central Italy (255553)
Marta Pischiutta1, Fabrizio Cara2, Giuseppe Di Giulio3, Maurizio Vassallo3 and Giovanna Cultrera2, (1)Istituto Nazionale di Geofisica e Vulcanologia, Italy, Rome, Italy, (2)Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy, (3)Istituto Nazionale di Geofisica e Vulcanologia, L'Aquila, Italy

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