[H-CG17] Tsunami science: learn from the past and mitigate future disasters

[HCG17-05] Recurrent M_w 5 Non-Double-Couple Earthquakes and Associated Tsunamis at a Submarine Caldera West of Tongatapu, Tonga

*Osamu Sandanbata¹, Daisuke Suetsugu^1,7, Hiroshi Inoue², Koki Nakata³, Yuya Ikenaga⁸, Kazuhisa Goto³, Taro Arikawa⁴, ’Apai Moala⁵, Mafoa Penisoni⁵, Angelic Pale⁵, Rennie Vaiomounga⁵, Taaniela Kula⁶, Mie Ichihara¹ (1. Earthquake Research Institute, The University of Tokyo, 2. Disaster Prevention Research Institute, Kyoto University, 3. Faculty of Science, The University of Tokyo, 4. Chuo University, 5. Tonga Geological Services, 6. Ministry of Lands, Survey, and Natural Resources of Tonga, 7. JOCV, JICA, 8. Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology)

Keywords:tsunami, volcanic earthquakes, caldera, repeating earthquakes