Near-Surface Effects: Advances in Site Response Estimation and Its Applications
The effects of shallow geological layers and interfaces (within the upper 1-2 km) on the seismic-induced ground motion recorded at the surface have been the focus of numerous studies over the past few decades. However, while the methods for simulating ground shaking have rapidly evolved, making robust 3D calculations feasible for broadband seismograms, the approaches for determining their input parameters at the necessary level of detail still suffer from a range of limitations and uncertainties. Furthermore, it is today recognized that the ground shaking recorded at the surface is also affected by the energy released back to the ground by building structures that might contribute to locally increase or decrease ground motion.
The aim of this session is to present studies dealing with innovative approaches for the investigation of shallow geological layers and interfaces; site response assessment, in particular, considering the spatial variability of seismic ground motion at small wavelengths and uncertainties in site response models and their inputs; and building/city-soil interaction. Studies dealing with the assessment of the attenuation of wave propagation and those focusing on non-linear behavior by making use of arrays of sensors, both in boreholes and in buildings, are particularly welcome. Studies involving innovative applications of horizontal to vertical spectral ratio (HVSR) methods for investigations of shallow geological interfaces, seismic microzonation studies and site response assessment are also encouraged. Furthermore, case studies dealing with local secondary effects due to earthquake shaking, such as liquefaction and landslides, in non-standard situations are also invited.
Conveners
James Kaklamanos, Merrimack College (kaklamanosj@merrimack.edu); Dhananjay A. Sant, The Maharaja Sayajirao University of Baroda (sant.dhananjay-geology@msubaroda.ac.in); Stefano Parolai, Instituto Nazionale di Oceanograffia e di Geofisica Sperimentale (sparolai@inogs.it); Philippe Guéguen, ISTerre, Université Grenoble Alpes / Université Savoie Mont‐Blanc/CNRS/IRD/IFSTTAR (philippe.gueguen@univ-grenoble-alpes.fr); Imtiyaz Parvez, CSIR Fourth Paradigm Institute (parvez@csir4pi.in); Hiroshi Kawase, Disaster Prevention Research Institute, Kyoto University (kawase@zeisei.dpri.kyoto-u.ac.jp); Ashly Cabas, North Carolina State University (amcabasm@ncsu.edu)
Oral Presentations
| Participant Role | Details | Start Time | Minutes | Action |
|---|---|---|---|---|
| Submission | Seismic Structure Beneath Los Angeles From the BASIN Experiment | 08:30 AM | 15 | View |
| Submission | Estimating Site Velocity Characteristics for Strong Motion Stations in Anchorage, Alaska | 08:45 AM | 15 | View |
| Submission | A Taxonomy for Site Complexity Using the HVSR: Application to the KiK-Net Database | 09:00 AM | 15 | View |
| Submission | An H/V Geostatistical Approach to Account for Spatial Variability in 1D Seismic Site Response | 09:15 AM | 15 | View |
| Submission | Empirical Horizontal Site Amplification Factor (HSAF) from Observed Earthquake Horizontal-to-Vertical Ratio (EHVR) and Vertical Amplification Correction Function (VACF) | 09:30 AM | 15 | View |
| Other Time | Break | 09:45 AM | 60 | |
| Submission | Ground-Motion Site Response and New Physics-Based Site Correction Factors for Design Response Spectrum | 10:45 AM | 15 | View |
| Submission | Sensitivity of Site Response Analyses to Input Motion Selection: Lessons Learned from Seattle and Boston | 11:00 AM | 15 | View |
| Submission | Deep Learning for Site Response Estimation from Geotechnical Array Data | 11:15 AM | 15 | View |
| Submission | High-Resolution Site Response Study of the Los Angeles Basin from the 2019 Ridgecrest Earthquake Sequence | 11:30 AM | 15 | View |
| Submission | Site Response Analyses of U.S. Geological Survey Seismic Stations Deployed After the M6.4 and M7.1 Ridgecrest Earthquakes | 11:45 AM | 15 | View |
| Other Time | Lunch | 12:00 PM | 150 | |
| Submission | 2D Numerical Investigation on the Effect of Random Velocity Perturbations on Seismic Ground Motion: Application to Site Effect Assessment in the Nice (France) Sedimentary Basin | 02:30 PM | 15 | View |
| Submission | A Simulation Platform to Quantify the Effects of Spatial Variability in Site Response for PSHA | 02:45 PM | 15 | View |
| Submission | Quantifying Seismic Amplification on Topography in New Zealand and Its Relationship to Landslide Occurrence: First Steps Under New Zealand’s Resilience Challenge Programme | 03:00 PM | 15 | View |
| Submission | Topographic Amplification of Ground Motions in Mt. Pleasant, Christchurch, New Zealand | 03:15 PM | 15 | View |
| Submission | Impact of Projected Climate-Driven Sea Level Rise on Liquefaction Vulnerability in Charleston, South Carolina | 03:30 PM | 15 | View |
| Other Time | Break | 03:45 PM | 45 | |
| Submission | Simultaneous Algebraic Reconstruction Technique (SART) for Retrieving Shear-Wave Quality Factor Qs Profiles Using Seismic Noise | 04:30 PM | 15 | View |
| Submission | On the Use of the High-Frequency Spectral Decay Parameter (κ0) to Constrain Large Strain Site Response Analysis | 04:45 PM | 15 | View |
| Submission | A Zeta Model for the Frequency-Dependent Decay of the Fourier Amplitude Spectrum of Acceleration at High Frequencies | 05:00 PM | 15 | View |
| Submission | Ground Motion Model for Hard-Rock Sites by Surface Recordings Correction: Site-Response Estimation and GMPE Derivation | 05:15 PM | 15 | View |
| Submission | Machine Learning Models for Predicting Ground Motion Amplifications in Japan | 05:30 PM | 15 | View |
| Total: | 555 Minute(s) |
Near-Surface Effects: Advances in Site Response Estimation and Its Applications
Description