Session Details | |
Section | SE - Solid Earth Sciences |
Session Title | Modeling Fast and Slow Earthquakes in Subduction Zones |
Main Convener | Dr. Takehito Suzuki (The University of Tokyo, Japan) |
Co-convener(s) | Dr. Ryosuke Ando (National Institute of Advanced Industrial Science and Technology, Japan) Dr. Satoshi Ide (The University of Tokyo, Japan) |
Session Description | In this decade, many significant megathrust earthquakes occurred in subduction zones, such as Sumatra, Chile, and Tohoku. Meanwhile, slow earthquakes, deep tremors and slow slip events, have been successively discovered in subduction zones, such as Nankai-Ryukyu, Taiwan, Cascadia, Mexico, and Hikurangi, where the future occurrence of megathrust earthquakes is also expected. Modeling such fast and slow earthquakes based on observations and physical theories is necessary and should be discussed here by the data analysis of specific phenomena and the numerical simulations of their occurrence. Through analytical and numerical studies, we discuss elementary processes in dynamic earthquake slip such as fault branching, thermoporoelastic effects and damage creation around the main fault plane. We also require knowledge about the underground structure and realistic temperature/pressure conditions. In the present session, we welcome various studies about subduction zones from observational and theoretical viewpoints and aim to understand systematically behaviors of earthquakes occurring there. |