*John L LaBrecque¹, Diego Arcas², Gerald Bawden³, Allison B. Craddock⁴, Lorraine Hwang⁵, Shunichi Koshimura⁶, Basara Miyahara⁷, Yasuku Ohta⁸, John Rundle⁹ (1.Chair, IUGG Commission on Geophysical Risk and Sustainability (GeoRisk Commission), 2.NOAA Center for Tsunami Research , 3.NASA Headquarters, Natural Hazards Research and GNSS Science Team, 4.Director, Central Bureau IGS & Jet Propulsion Laboratory, 5.Director Computational Infrastructure for Geodynamics, Univ. Califorinia, Davis, 6.International Research Institute of Disaster Science, Tohoku University, 7.President, Global Geodetic Observing System & Director, Space Geodesy Div. , Geospatial Information Authority of Japan , 8.Graduate School of Science, Tohoku University, 9.Professor, Univ. California, Davis)

*Basara Miyahara¹ (1.GSI of Japan)

*Allison Craddock¹, John Labrecque², John Rundle³, Basara Miyahara⁴ (1.NASA Jet Propulsion Laboratory, California Institute of Technology, USA, 2.University of Texas, Center for Space Research, USA, 3.University of California, Departments of Physics and Earth & Planetary Science, USA, 4.Geospatial Information Authority of Japan, Japan)

*Yusuke Yokota¹, Basara Miyahara³, Toshimichi Otsubo⁴, Yasuhiro Murayama⁵, Hiroshi Munekane³, Tadashi Ishikawa² (1.Institute of Industrial Science, The University of Tokyo, 2.Hydrographic and Oceanographic Department, Japan Coast Guard, 3.Geospatial Information Authority of Japan, 4.Hitotsubashi University, 5.National Institute of Information and Communications Technology)

*Toshimichi Otsubo¹, Basara Miyahara², Yusuke Yokota³, Shinobu Kurihara² (1.Hitotsubashi University, 2.Geospatial Information Authority of Japan, 3.Institute of Industrial Science, the University of Tokyo)

Riccardo Barzaghi¹, George S Vergos², *Basara Miyahara³ (1.Politecnico di Milano, 2.Aristotle University of Thessaloniki, 3.GSI of Japan)

*Ryuichi Ichikawa¹, Hideki Ujihara¹, Shinsuke Satoh¹, Yusaku Ohta², Basara Miyahara³, Hiroshi Munekane³, Taketo Nagasaki⁴, Osamu Tajima⁵, Kentaro Araki⁶, Takuya Tajiri⁶, Hiroshi Takiguchi⁷, Takeshi Matsushima⁸, Nobuo Matsushima⁹, Tatsuya Momotani¹⁰, Kenji Utsunomiya¹⁰ (1.National Institute of Information and Communications Technology, 2.Tohoku University, 3.Geospatial Information Authority of Japan, 4.RIKEN, 5.Kyoto University, 6.Meteorological Research Institute, JMA, 7.Japan Aerospace eXploration Agency, 8.Kyushu University, 9.National Institute of Advanced Industrial Science and Technology, 10.Japan Weather Association)

*Yusuke Yokota¹, Tadashi Ishikawa², Basara Miyahara³, Toshimichi Otsubo⁴ (1.Institute of Industrial Science, The University of Tokyo, 2.Hydrographic and Oceanographic Department, Japan Coast Guard, 3.Geospatial Information Authority of Japan, 4.Hitotsubashi University)