Rupture Dynamics on Rough and Segmented Faults

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Project Description

In this project, the student will conduct numerical experiments to study the dynamic rupture process and associated radiated seismic energy for faults and simple fault systems that comprise (a) fractally rough fault surfaces and (b) canonical models of segmentation. In part (c), the approaches (a) and (b) are combined to obtain a first-order understanding how small-scale fault roughness may affect rupture-transition properties at segment boundaries. The student will initially test two available HPC-enabled dynamic-rupture simulation codes in terms of performance and for code verification. ​​​​​​​
Program - Earth Science and Engineering
Division - Physical Sciences and Engineering
Field of Study - ​Geophysics, Seismology​

About the
Researcher

Paul Martin Mai

Professor, Earth Science and Engineering<br/>Associate Dean Students, Physical Science and Engineering

Paul Martin Mai
Professor Mai's research interests include the physics of earthquakes and the resulting complexity of earthquake phenomena, as seen, for instance, through earthquake-source imaging and dynamic rupture modeling. Mai's work extends to strong ground motion properties and near-source broadband wavefield simulations that include seismic wave scattering in heterogeneous media.

He is also interested in earthquake engineering and seismic hazard analysis, and the application of innovative seismology tools in these fields. In this context, his work spans from fundamental earthquake physics to applied earthquake engineering.

Desired Project Deliverables

​+ compare two codes/methods using identical numerical parameterization+ examine rupture process and seismic radiation for various degrees of fault roughness + study the rupture jumping (branching vs. jumping) behavior in case of idealized large-scale segmented but small-scale rough faults+ document results in oral (group-seminar talk) and written (report) form