Chief Researcher

researchmap

Specialties

Volcanology

Education and Research History

Mar. 2005  B.S. Department of Earth Science, Kanazawa University
Mar. 2007  M.S. Department of Earth and Planetary Science, Kyushu University
Mar. 2010  Ph.D. Department of Earth and Planetary Science, Kyushu University
Apr. 2010-Dec. 2010  Technical Staff, Geological Survey of Japan, AIST
Jan. 2011-Mar. 2013  COE fellow, Department of Geophysics, Tohoku University
Apr. 2013-Apr. 2014  Postdoc Researcher, Institute of Seismology and Volcanology, Kyushu University
May. 2014-Sep. 2016  Researcher, National Research Institute for Earth Science and Disaster Resilience
Oct. 2016-Present  Chief Researcher, National Research Institute for Earth Science and Disaster Resilience

Recent Research Activities
  • Petrology and geology on volcanic phenomena
  • Petrological and geological monitoring for volcanic activity
Selected Publications

Miwa, T., Ishibashi, H., Kazahaya, R., Okumura, S., Iguchi, M., Saito, G., Yasuda, A., Geshi, N., and Kagi, H. (2023), Redox state of magma recorded in volcanic glass from an ash-forming eruption at Bromo volcano, Indonesia: Insights into the degassing process. Bulletin of Volcanology, 85, 48. https://doi.org/10.1007/s00445-023-01660-1

Miwa T., Geshi N., Itoh J., Tanada T., Iguchi M. (2021), Automatic onsite imaging of volcanic ash particles with VOLCAT: Towards quasi-real-time eruption style monitoring, Journal of Volcanology and Geothermal Research,  416, 107267. https://doi.org/10.1016/j.jvolgeores.2021.107267

Miwa T., Iriyama Y., Nagai M., Nanayama F. (2020), Sedimentation process of ashfall during a Vulcanian eruption as revealed by high-temporal resolution grainsize analysis and high-speed camera imaging, Progress in Earth and Planetary Science, 7, Article number: 3. https://doi.org/10.1186/s40645-019-0316-8

Professional Memberships

Volcanological Society of Japan, Japan Geoscience Union, American Geophysical Union, Mineralogical Society of America

Affiliated Fundamental Research and Development Centers

Center for Integrated Volcano Research