1. Environmental Research Division, Instituto Tecnológico y de Energías Renovables (ITER)
2. Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University
3. Instituto de Productos Naturales y Agrobiología de Canarias, Consejo Superior de Investigaciones Científicas (CSIC)
4. Earthquake Research Institute, The University of Tokyo
5. Laboratory for Earthquake Chemistry, Graduate School of Science, The University of Tokyo