*Sean Santellanes¹, Yi Wun Mika Liao^2,3, Aisling O'Kane⁴, Juan Francisco Rodríguez Gálvez^5,6, Bill Fry², Andrew Gorman¹ (1. Department of Geology, University of Otago, Dunedin, Otago, NZL, 2. Earth Sciences New Zealand, Lower Hutt, Wellington, NZL, 3. School of Earth and Environment, University of Canterbury, Christchurch, Canterbury, NZL, 4. School of Geography, Environment and Earth Sciences, Victoria University of Wellington, Wellington, NZL, 5. Istituto Nazionale di Geofisica e Vulcanologia: Pisa, ITA, 6. Departamento de Análisis Matemático, Estadística e Investigación Operativa y Matemática Aplicada, University of Malaga: Málaga, Málaga, ESP)

*Yuchen Wang¹, Kentaro Imai¹, Takuto Maeda² (1. Japan Agency for Marine-Earth Science and Technology, 2. Graduate School of Science and Technology, Hirosaki University)

*Masayoshi Someya^1,2,3, Takashi Furumura¹ (1. Earthquake Research Institute The University of Tokyo, 2. JSPS Research Fellow (DC1), 3. Japan Agency for Marine-Earth Science and Technology)

*Kudo Aoi^1,2, Shingo Watada², Osamu SANDANBATA² (1. Department of Earth Planetary Science, School of Science, The University of Tokyo, 2. Earthquake Research Institute, The University of Tokyo)

*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)

*Hiroaki Tsushima¹, Tatsuya Kubota², Takeyasu Yamamoto¹, Ryota Hino³, Yusaku Ohta³ (1. Meteorological Research Institute, Japan Meteorological Agency, 2. National Research Institute for Earth Science and Disaster Resilience, 3. Graduate School of Science, Tohoku University)