Institute: Department of Geophysics, Stanford University
Title: Postdoctoral Researcher
Country/Region: USA
Period: 2022/07/01-2023/6/31
Theme: Novel Approaches for Oceanic Lithosphere-Asthenosphere Boundary Imaging and Urban Microseismic Monitoring
Host: Nozomu TAKEUCHI
Introduction: My interest lies in microseismic monitoring, machine-learning-based data mining, wave-equation-based seismic imaging/tomography, etc. Before joining ERI, I worked as a postdoc with Prof. Gregory Beroza at Stanford University. I worked on super dense array data (large-N array) to reveal the seismogenic zone characteristics, which for example, provides new constraints to the seismogenic depth beneath Los Angeles basin in southern California, and creates a seismogenic model that the deep extension of an active fault is localized and deforming, with stress concentration leading to a concentration of small events near the seismic-aseismic transition. I also developed an intelligent workflow for urban seismic monitoring by combining a deep-learning-based noise suppression algorithm and an automatic high-resolution seismic localization approach. I have a background of Applied Geophysics, and my earlier work focused on high accuracy numerical solution for elastic wave equations and its application to inverse problems. During my stay at ERI, I plan to extend these techniques from Applied Geophysics to lithospheric-scale seismic imaging, and work on the marine data to reveal the subsurface structure. I will also work on an improved effort for urban/oceanic seismic monitoring using the AI workflow.


Fiscal Year: 2022