JAMSTEC > HPCI SPIRE Field3 > R&D Project > Improvement of earthquake prediction accuracy


R&D Project

  Improvement of earthquake prediction accuracy

     Managing Director:
     Takashi Furumura
  (University of Tokyo)
Creating Virtual Earth on "K Computer"

 We are studying earthquake occurrence history using advanced large-scale simulations made possible by the “K Computer”. Large earthquakes occur as a result of complex fault movement, and as the seismic waves travel from the epicenter through the complex structure of the earth interior, the waves are amplified, causing strong motions over the surface of the Earth.
 In order to accurately simulate such complicated propagation of the seismic waves, high performance computation is needed. With the arrival of the “K Computer”, the scale of the computer simulation has increased 50-fold from the previous simulation using the Earth Simulator (JAMSTEC).
 We are currently examining the mechanism of Great off Tohoku Japan Earthquake of 2011, and large earthquakes which repeatedly occurred along the Nankai Trough in the past, and have reproduced the strong quakes and the subsequent tsunami. We are now trying to verify the result of our simulation by comparing our data in detail to those actually observed during the earthquakes. If we can realize a highly accurate simulation, we will be able to estimate and assess strong quakes and tsunami anticipated to strike in the near future. This will lead to damage prediction and mitigation.

  Research Goal


Videos provide : Takashi Furumura (University of Tokyo)
1707 Hoei Earthquake simulation The intensity(earthquake intensity and seismic energy) of the ground velocity (where upward, downward and horizontal components were synthesized) is displayed by color and height difference in 3D


Videos provide : Takashi Furumura / Takuto Maeda (University of Tokyo)
2011年東北地方太平洋沖地震 地震動と津波の伝播の様子