103rd Sogo Bosai seminar (July, 18)

We are pleased to announce the 103rd Sogo Bosai Seminar (July. 18, Friday) as follows.
We look forward to your participation.
This seminar will be held in English.
 
[Date & Time]
July. 18, Friday, 10:00-12:00
 

[Venue]
E-517D of Main building, Uji campus and Online
If you will attend via online, please register yourself by July 17, 9:00am:
https://forms.gle/ntAfjB1jVnt3MNzL6
 

[Title]
Advances in Understanding the Mexican Subduction Process through Computational Modeling
 

[Speaker]
Josué Tago Pacheco
Associate professor, School of Engineering, National Autonomous University of Mexico
 

[Abstract]
Between 2016 and 2022, a SATREPS project between Mexico and Japan enabled the deployment of an amphibious observation network along the Mexican Pacific coast. The quality and volume of the seismological and geodetic data collected allowed us to reconstruct the tectonic kinematics of the Mexican subduction zone using the ELADIN code, developed as part of that initiative.
In mid-2024, a new SATREPS project was launched, now including El Salvador as a participating country. In addition to continuing offshore data acquisition along the Mexican coast, this new phase aims to reproduce the observed tectonic kinematics through computational modeling in order to better understand the underlying physics, i.e. the dynamics of the tectonic processes involved.
In this seminar, I will present our ongoing efforts to achieve this goal. I will begin by discussing the implementation of rate-and-state friction laws within a discontinuous Galerkin framework for dynamic rupture modeling. Then, I will describe the beginning of our work on seismic cycle simulation in the Mexican subduction zone using the FASTDASH code, which enables quasi-dynamic simulations via the Boundary Element Method (BEM) accelerated by Hierarchical Matrices.
 

[Short bio]
PhD. Josué Tago Pacheco is a Chemical Engineer graduated from the Celaya Institute of Technology. He later studied a Master’s degree in Computer Science and Industrial Mathematics at the Center for Research in Mathematics and a PhD in Earth Sciences at the Institute of Geophysics of UNAM. He then did a postdoctoral stay at the Institute of Earth Sciences of the Joseph Fourier University, France. After finishing, he joined the Geophysics Department of the School of Engineering at UNAM as a full time professor. His research focuses on mathematical and computational modeling of geophysical systems. In 2021 he received the recognition “National University Distinction for Young Academics” in the area of teaching in exact sciences. From 2024 to 2029 he will be responsible for the Mexican team of the tri-national SATREPS project, with Japan and El Salvador, “The Project for Compound Disaster Risk Reduction associated with Large Earthquakes and Tsunamis”.