1:45 PM - 2:00 PM
[SSS33-01] Special Project for Reducing Vulnerability for Urban Mega Earthquake Disasters: Hazard and Risk in metropolitan Tokyo
Keywords:Metropolitan Tokyo, Seismic Hazard, Philippine Sea Plate
We are developing a method to estimate the seismic intensity distribution by an earthquake of arbitrary location and magnitude. This will enable us to correlate it to historically recorded seismic intensity distribution and estimate the hypocenter and magnitude of past major earthquakes in the Kanto region.
In addition, the change of seismicity rate after the 2011 Tohoku-oki earthquake suggests a change of the stressing rate in the greater Tokyo area. Quantitative analysis of MeSO-net data shows a significant increase of the rate of earthquakes that have a fault orientation favorable to increasing Coulomb stress after the Tohoku-oki event.