YAGUCHI Muga

Job title	Senior Researcher/The 3rd lab./Department of Volcanology Research
E-mail
Personal	researchmap❐
Expertise	Geochemistry
Degree	Ph.D.
Publications	Tomoya Obase, Hirochika Sumino, Kotaro Toyama, Kaori Kawana, Kohei Yamane, Muga Yaguchi, Akihiko Terada, Takeshi Ohba (2022) Monitoring of magmatic–hydrothermal system by noble gas and carbon isotopic compositions of fumarolic gases. Scientific Reports, 12 :17967. Brice Tchakam Kamtchueng, Aicha Foupouagnigni, Mero Yannah, Josephine Ndjama, Mumbfu Ernestine Mimba, Mengnjo Jude Wirmvem, Muga Yaguchi, Gloria Eneke Takem, Andrew Ako Ako, Wilson Yetoh Fantong, Emmanuel Ngnikam, Takeshi Ohba (2022) Major ions, trace elements and stable isotope characteristics of shallow groundwater in the Bonaberi district, Douala, Cameroon. Sustainable Water Resources Management, 8;162. Takahiro Kitagawa, Ryunosuke Kazahaya, Muga Yaguchi, Hiroshi Shinohara, Fukuoka Regional Headquarters, Oita Meteorological Office (2022) Effects of H2S Sensor Sensitivity Drift of Multi-GAS: Quantitative Approaches for Continuous Volcanic Gas Composition Monitoring. Bulletin of the Volcanological Society of Japan, 67, 113-123 (in Japanese with English abstract). Muga Yaguchi, Takeshi Ohba, Yasuo Hirayama, and Nozomi Numanami (2022) Volcanic ash from the June 17, 1962 eruption of Yakedake volcano: stereomicroscopic, XRD, and water-soluble components analyses. Journal of Disaster Research, 17, 257-262. Akihiko Terada, Muga Yaguchi, Takeshi Ohba (2022) Quantitative assessment of temporal changes in subaqueous hydrothermal activity in active crater lakes during volcanic unrest based on a time-series of lake water chemistry. Frontiers in Earth Science, 9:740671. doi: 10.3389/feart.2021.740671 Muga Yaguchi, Takeshi Ohba, and Akihiko Terada (2021) Groundwater interacting at depth with hot plastic magma triggers phreatic eruptions at Yugama Crater Lake of Kusatsu-Shirane volcano (Japan). Frontiers in Earth Science, 9:741742. doi: 0.3389/feart.2021.741742 Yasushi Daita, Takeshi Ohba, Muga Yaguchi, Takao Sogo, and Masatake Harada (2021) Volcanic Activity Forecast Based on Volcanic Gas Composition of Hakone Volcano, Japan: Utilization for Volcanic Disaster Prevention . Journal of Geography (Chigaku Zasshi), 130, 783-796 (in Japanese with English abstract). doi: 10.5026/jgeography.130.783 Takeshi Ohba, Muga Yaguchi, Urumu Tsunogai, Masanori Ito and Ryo Shingubara (2021) Behavior of magmatic components in fumarolic gases related to the 2018 phreatic eruption at Ebinokogen Ioyama volcano, Kirishima Volcanic Group, Kyushu, Japan. Earth, Planets and Space, 73:81. Yoichi Muramatsu and Muga Yaguchi (2020) Formation Mechanism of the Masutomi hot spring waters, Yamanashi Prefecture, Japan. Journal of Hot Spring Sciences, 70, 124-136 (in Japanese with English abstract). Muga Yaguchi (2020) Abnormal discharge of high-temperature hot spring water observed at the abandoned well in the Okuhida hot spring area during the earthquake swarm occurred at Gifu-Nagano district, central Japan. Journal of Hot Spring Sciences, 70, 70-79. Muga Yaguchi, Akihiko Terada, and Yasuo Ogawa (2020) Air-Fall Ash from the Main Crater of Asama Volcano on August 7, 2019, and its Water-Soluble Components. Journal of Disaster Research, 15, 53-56. Muga Yaguchi, Takeshi Ohba, Nozomi Numanami and Ryohei Kawaguchi (2019) Constituent mineral and water-soluble component of volcanic ash from the 2018 eruption of Mt. Motoshirane of Kusatsu-Shirane volcano, Japan. Journal of Disaster Research, 14, 991-995. Takeshi Ohba, Muga Yaguchi, Kana Nishino, and Nozomi Numanami (2019) Time Variation in the Chemical and Isotopic Composition of Volcanic Gas at Mt. Mihara of Izu-Oshima Island, Japan. Journal of Disaster Research, 14, 972-977. Takeshi Ohba, Muga Yaguchi, Kana Nishino, Nozomi Numanami, Urumu Tsunogai, Masanori Ito and Ryo Shingubara (2019) Time variation in the chemical and isotopic composition of fumarolic gases at Kusatsu-Shirane volcano Japan. Frontiers in Earth Science, 7:249. Muga Yaguchi, Takeshi Ohba and Masakazu Sago (2019) The nature and source of the volcanic ash during the 2015 small phreatic eruption at Hakone volcano, central Japan. Geochemical Journal, 53, 209-217. Takeshi Ohba, Muga Yaguchi, Kana Nishino, Nozomi Numanami, Yasushi Daita, Chiho Sukigara, Masanori Ito and Urumu Tsunogai (2019) Time variations in the chemical and isotopic composition of fumarolic gases at Hakone volcano, Honshu Island, Japan, over the earthquake swarm and eruption in 2015, interpreted by magma sealing model. Earth, Planets and Space, 71:48. Yasushi DAITA，Takeshi OHBA，Muga YAGUCHI，Takao SOGO and Masatake HARADA(2020) Temporal variation of the fumarolic gas composition (C/S ratio) in 2017 at north side slope of Owakudani geothermal area, Hakone volcano. Bulletin of the Hot Spring Research Institute of Kanagawa Prefecture, 51, 37-44 (in Japanese). Minoru Kusakabe, Rosine E. Tiodjio, Bruce Christenson, Kazuto Saiki, Takeshi Ohba and Muga Yaguchi (2019) Enrichment of ferrous iron in the bottom water of Lake Nyos. Journal of African Earth Sciences, 150, 37-46. Kaori Seki, Takeshi Ohba, Shinnosuke Aoyama, Yuichiro Ueno, Hirochika Sumino, Wataru Kanda, Muga Yaguchi, Toshiya Tanbo (2019) Variations in thermal state revealed by the geochemistry of fumarolic gases and hot-spring waters of the Tateyama volcanic hydrothermal system, Japan. Bulletin of Volcanology, 81:8. Akihiko Terada, Yuichi Morita, Takeshi Hashimoto, Toshiya Mori, Takeshi Ohba, Muga Yaguchi and Wataru Kanda (2018) Water sampling using a drone at Yugama crater lake, Kusatsu-Shirane volcano, Japan. Earth, Planets and Space, 70:64. Yasushi DAITA，Takeshi OHBA and Muga YAGUCHI (2017) Temporal variation of the fumarolic gas composition (C/S ratio) be connected activity in Hakone volcano. Bulletin of the Hot Springs Research Institute of Kanagawa Prefecture, 49, 29-38 (in Japanese). Mengnjo Jude Wirmvem, Takeshi Ohba, Linus Anye Nche, Brice Tchakam Kamtchueng, Wiylahnyuy Edith Kongnso, Mumbfu Ernestine Mimba, Tasin Godlove Bafon, Muga Yaguchi, Gloria Eneke Takem, Wilson Yetoh Fantong, Ako Andrew Ako (2017) Effect of diffuse recharge and wastewater on groundwater contamination in Douala, Cameroon. Environmental Earth Sciences, 76, 354(1-26). Yoichi Muramatsu, Muga Yaguchi, Hitoshi Chiba, Fumiaki Okumura and Takeshi Ohba (2016) Genesis of Highly Saline Hot Spring Waters from the Southern Itoigawa-Shizuoka Tectonic Line and Areas East ─Genetic Analogy of the Kashio Highly Saline Hot Spring Waters from the Median Tectonic Line─. J. Hot Spring Sci., 66, 70-88 (in Japanese with English abstract). Yoichi Muramatsu, Muga Yaguchi and Takeshi Ohba (2016) Chemical Composition and Stable Isotope (δ18O and δD) Ratios of Hot Spring Waters from the Northern Kanto Plain, Central Japan, and Their Geological and Mineralogical Interpretations. J. Hot Spring Sci., 66, 4-20 (in Japanese with English abstract). Yoichi Muramatsu, Muga Yaguchi and Takeshi Ohba (2016) Fluid Formation Mechanism of Deep Chloride Hot Spring Waters from the Central Kanto Plain, Central Japan ─Diagenetic Evolution of Pore Water Trapped in the Kazusa and Annaka-Awa Groups─. J. Hot Spring Sci., 65, 216-233 (in Japanese with English abstract). Muga Yaguchi, Yoichi Muramatsu, Hitoshi Chiba, Fumiaki Okumura and Takeshi Ohba (2016)The origin and hydrochemistry of deep well waters from the northern foot of Mt. Fuji, central Japan. Geochemical Journal, 50, 227-239. Muga Yaguchi, Yoichi Muramatsu, Hitoshi Chiba, Fumiaki Okumura, Takeshi Ohba and Masumi Yamamuro (2014) Hydrochemistry and Isotopic Characteristics of Non-Volcanic Hot Springs around the Miocene Kofu Granitic Complex Surrounding the Kofu Basin in the South Fossa Magna Region, Central Honshu, Japan. Geochemical Journal, 48, 345-356. Muga Yaguchi, Yoichi Muramatsu, Hideyuki Nagashima, Fumiaki Okumura and Masumi Yamamuro (2014) Geochemical and Isotopic Characteristics of the Mineral spring and Natural Spring Waters in the Setogawa Group in the Western Yamanashi Prefecture, Japan. Journal of Hot Spring Sciences, 64, 42-52. Muga Yaguchi and Katsuro Anazawa (2013) Influence of Nitric Acid and Hydrochloric Acid on the Calcium Determination by AAS in the Presence of Interference Inhibitor. BUNSEKI KAGAKU, 62, 701-705 (in Japanese with English abstract).
Project	Research on Monitoring and Forecasting of Volcanic Activity