This study inverted seismic velocity to temperature based on mineral physics and used this temperature as input for geodynamic simulations. Then, the stress fields in Northeast Asia were determined by a temperature-dependent viscosity structure and buoyancy force. The modeled stress fields were used to investigate the seismicity of South Korea, and I found that variations in lithospheric thickness are important for understanding seismic activity.

This study jointly inverted coseismic slip from seismic waveforms and InSAR images related to the 2017 Pohang earthquake. I calculated the perturbed pressure driven by the earthquake and conducted transient fluid flow modeling. The modeling results indicate that many aftershocks can be triggered by poroelastic effects, and the decay of aftershocks is also influenced by this type of postseismic deformation. You can check out two videos demonstrate poroelastic rebound. 

This study utilized a locally dense array of seismographs in the southeastern region of South Korea to calculate relative travel-time residuals of teleseismic P-waves. I inverted these residuals to image the seismic structure of the crust and uppermost mantle. This study reveals a northeast strike of a low-velocity zone at depths of 25-35 km and an east-west trend of another low-velocity zone at depths of 40-55 km. I suggest that these zones were originally formed by Cenozoic deformation during the period of 25 to 16 Ma, and the relatively elevated temperature due to this deformation is responsible for these low seismic structures.

I coupled TOUGH versions 2 and 3 with FLAC3D version 6. This study successfully completed four benchmarks for both directions, from M to H and from H to M.