KATO, Naoyuki

Earthquake Research Institute

Office: ERI-1-605
TEL: +81-3-5841-5812
FAX: +81-3-5689-7234

Research Field

earthquake source mechanics

Current Research

My major research interest is on understanding physical processes of seismic cycles, seismic coupling of plate interfaces, crustal deformation due to faulting, and seismicity pattern. My research involves numerical simulation of faulting process on the basis of laboratory-derived constitutive friction laws. Specific subjects are as follows: (1) Development of constitutive friction law on the basis of laboratory experiments. (2) Effects of stress perturbations due to aseismic faulting on seismic activity. (3) Premonitory aseismic sliding prior to large earthquakes. (4) Effect of interactions between faults on seismic cycles.

Representative Publications

1. Kato, N., 2012, Dependence of earthquake stress drop on critical slip-weakening distance, J. Geophys. Res., 117, B01301, doi:10.1029/2011JB008359.
2. Kato, N., 2012, Fracture energies at the rupture nucleation points of large interplate earthquakes, Earth Planet. Sci. Lett., 353-354, 190-197.
3. Kato, N. and S. Yoshida, 2011, A shallow strong patch model for the 2011 great Tohoku-oki earthquake: A numerical simulation, Geophys. Res. Lett., 38, L00G04, doi:10.1029/2011GL048565.