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Room: Exhibit Hall

Date: 5/1/2024

Session Time: 8:00 AM to 5:45 PM (local time)

Over the past few decades, a large number of studies have focused on the impacts of the shallow geological subsurface structure (within the uppermost one to two km) on the intensity and frequency content of ground motions recorded at the surface. One of the most significant developments in the field is the growing evidence that simplified 1D ground response models have only limited ability to accurately match recorded ground motions. For this reason, very detailed and computationally expensive methods for analysing the ground response are gaining more interest as of late.

In this session, we invite presentations on site characterization and ground motion modeling covering amplification and attenuation in a wide range of frequencies from < 1 Hz (interesting from an engineering perspective) to > 10 Hz (of special interest for the characterization of attenuation). Numerical or empirical studies on the frequency-dependent effects of spatial variability on attenuation and amplification, an often overlooked issue, are specifically welcome. Similarly, contributions about multidimensional ground response analyses are encouraged. Further topics of interest include the use of Artificial Intelligence (AI) to enhance and/or reduce the computational load of very detailed ground response analyses and site characterization as well as other geophysical surveys using active and passive seismic sources. We also invite contributions on the spatial correlation of earthquake intensity measures as well as correlation models for different intensity measures and regions based on empirical data and simulations. This session aims to provide researchers and engineers with an opportunity to discuss different modeling approaches and their required computational effort, and to compare the numerical results against real, observed ground motions over a broadband frequency range.

Conveners:
Morteza Bastami, International Institute of Earthquake Engineering and Seismology (m.bastmi@iiees.ac.ir)
Mohamad M. Hallal, University of California, Berkeley (mhallal@berkeley.edu)
Chunyang Ji, North Carolina State University (cji3@ncsu.edu)
Andrés Olivar Castaño, University of Potsdam (andres.olivar-castano@uni-potsdam.de)
Marco Pilz, GFZ Potsdam (pilz@gfz-potsdam.de)

Poster Presentations