Earthquake Research Institute, University of Tokyo
Subduction zones host megathrust earthquakes accompanied by strong ground
motion and tsunamis. Moreover, varioius types of slow earthqukes occur
on the megathrust fault. To understand such complex slip behavior of the
megathrust faults, we need to know physical properties of the megathrust
faults. I have tackled receiver function analysis using ocean-bottom seismometer
(OBS) data. Although receiver functions calculated with OBS data suffer
from water- and sediment-related reverberations, they have potential to
provide a unique constraint (i.e., shear modulus) on the megathrust properties.
I have also experienced tomographic analysis and cluster analysis of seismicity.