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DTSTART;TZID=Europe/Stockholm:20190612T153000
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UID:submissions.pasc-conference.org_PASC19_sess133_msa141@linklings.com
SUMMARY:Physics-Based Earthquake Modeling with CGFDM: the Rupture Dynamics
 , Strong Ground Motion and Seismic Hazards
DESCRIPTION:Minisymposium\nSolid Earth Dynamics\n\nPhysics-Based Earthquak
 e Modeling with CGFDM: the Rupture Dynamics, Strong Ground Motion and Seis
 mic Hazards\n\nZhang, Zhang, Chen\n\nThe damages caused by earthquakes are
  becoming more and more serious as the highly developing society. The urge
 nt problems needed to be solved for our country and other earthquake-prone
  areas are to mitigate the casualties and economic loss. Usually, the larg
 e earthquakes which bring intensive damages into the localities occur on f
 aults with complex geometry and other heterogeneous conditions. How to inv
 estigate large complex earthquakes by numerical tools is a big challenge t
 ask. While keeping the advantages of conventional FDM, e.g. the computatio
 nal efficiency and the easy implementation, the CG-FDM is also flexible in
  modeling the complex fault model by using general curvilinear grids, and 
 thus is able to model the rupture dynamics of a fault with complex geometr
 y, such as oblique dipping fault, non-planar fault, fault with step-over, 
 fault branching, even if irregular topography exists. In this work, we use
  this numerical method to model the dynamic rupture, the strong ground mot
 ion and then the seismic hazards distributions of large earthquakes. With 
 the support from supercomputers, this physics-based earthquake modeling ca
 n help us to investigate large destructive earthquakes and to predict seis
 mic hazards for earthquake scenarios.
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