[S-VC38] Active Volcanism

Wed. May 29, 2019 10:45 AM - 12:15 PM IC (2F)

convener:Yuta Maeda(Nagoya University), Takahiro Miwa(National research institute for earth science and disaster prevention), Takeshi Nishimura(Department of Geophysics, Graduate School of Science, Tohoku University), Chairperson:Nobukazu Seama, Tetsuo Matsuno

This session discusses various aspects of active volcanisms including, but not limited to, recent and historical eruptions, various phenomena associated with the volcanic activities, underground structures of the volcanoes, and developments of new instruments based on geophysical, geochemical, geological, and multidiscipline approaches. We also welcome studies on understanding and predicting the transitions of the eruptive activities from observational, theoretical, and experimental approaches.

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10:45 AM - 11:00 AM

[SVC38-30] Summary of Kikai submarine caldera researches conducted by KOBEC (Kobe Ocean-Bottom Exploration Center)

*Nobukazu Seama^1,2, Tetsuo Matsuno^2,1, Koji Kiyosugi^3,2, Satoshi Shimizu², Reina Nakaoka², Keiko Suzuki-Kamata^2,1, Yasutomo Seto¹, Mamoru Sano², Yuiko Morita⁴, Hikaru Iwamaru², Haruhisa Morozumi², Misaki Horiuchi¹, Kimihiro Nishimura¹, Hiroshi Ichihara⁵, Kazuki Hayashi¹, Toki Hirose¹, Katsuya Kaneko^1,2, Hiroto Yamaguchi⁴, Yuki Okizono⁴, Hiroko Sugioka^1,2, Kazuo Nakahigashi^6,2, Yojiro Yamamoto⁷, Tatsuya KODA², Shuichi Kodaira^7,2, Yoshiyuki Tatsumi^2,1, Scientific party of T/S Fukae-maru Kikai caldera research cruises (1.Department of Planetology, Graduate School of Science, Kobe University, 2.Kobe Ocean Bottom Exploration Center, Kobe University, 3.Organization of Advanced Science and Technology, Kobe University, 4.Department of Planetology, Faculty of Science, Kobe University, 5.Graduate school of environmental studies, Nagoya University, 6.Tokyo University of Marine Science and Technology, 7.Japan Agency for Marine-Earth Science and Technology)

11:00 AM - 11:15 AM

[SVC38-31] Distribution of submarine pyroclastic-flow deposits of Akahoya eruption, Kikai caldera

*Satoshi Shimizu^1,2, Nobukazu Seama^3,1, Reina NAKAOKA¹, Tetsuo Matsuno^1,3, Koji Kiyosugi⁵, Hikaru Iwamaru^1,2, Mamoru Sano^1,2, Kimihiro Nishimura³, Keiko Suzuki-Kamata^1,3, Katsuya Kaneko³, hiroto yamaguchi⁴, Misaki Horiuchi³, Toki Hirose³, Kazuki Hayashi³, Yoshiyuki Tatsumi^1,3 (1.Ocean Bottom Exploraiton Center, Kobe University, 2.Nippon Marine Enterprises, Ltd., 3.Department of Planetology, Graduate School of Science, Kobe University, 4.Department of Planetology, Faculty of Science, Kobe University, 5.Organization of Advanced Science and Technology, Kobe University)

11:15 AM - 11:30 AM

[SVC38-32] Identification of submarine volcanic ash around the Kikai caldera with the Koya pyroclastic flow deposit inferred from glass composition

*Reina NAKAOKA¹, Keiko Suzuki-Kamata^1,2, Satoshi Shimizu¹, Yoshiyuki Tatsumi^1,2, Katsuya Kaneko^2,1, Koji Kiyosugi^3,1, Nobukazu Seama^2,1, Tetsuo Matsuno^1,2, Kimihiro Nishimura², Kazuki Hayashi² (1.Kobe Ocean-Bottom Exploration Center, Kobe University, 2.Department of Planetology, Graduate School ofScience, Kobe University, 3.Organization of Advanced Science and Technology, Kobe University )

11:30 AM - 11:45 AM

[SVC38-33] Preliminary report of the sea floor survey by a remotely operated vehicle (ROV) at the Kikai caldera, SW Japan

*Koji Kiyosugi¹, Keiko Suzuki-Kamata², Haruhisa Morozumi^2,4, Yoshiyuki Tatsumi², Katsuya Kaneko³, Reina NAKAOKA², Mamoru Sano², Satoshi Shimizu², Hikaru Iwamaru², Nobukazu Seama³, Tetsuo Matsuno², Kimihiro Nishimura³, Kazuki Hayashi³, Misaki Horiuchi³ (1.Organization for Advanced and Integrated Research, Kobe University, 2.Kobe Ocean-Bottom Exploration Center, Kobe University, 3.Department of Planetology, Graduate School of Science, Kobe University, 4.Japan Oil, Gas and Metals National Corporation)

11:45 AM - 12:00 PM

[SVC38-34] Seismic activity beneath Kikai Caldera by using Ocean Bottom Observation

*Yasutomo Seto¹, Hiroko Sugioka², Yojiro Yamamoto³, Tsutomu Takahashi⁴ (1.Department of Planetology, Graduate School of Science, Kobe University, 2.Department of Planetology, Kobe University, 3.Japan Agency for Marine-Earth Science and Technology, 4.Research and Developement Center for Earthquake and Tsunami, Japan Agency for Marine-Earth Science and Technology)

12:00 PM - 12:15 PM

[SVC38-35] An investigation of three-dimensional electrical resistivity structure under Kikai Caldera

*Tetsuo Matsuno^1,2, Toki Hirose², Yuuki Okizono³, Nobukazu Seama^2,1, Hiroshi Ichihara⁴, Hiroko Sugioka^2,1, Yoshiyuki Tatsumi^1,2 (1.Kobe Ocean Bottom Exploration Center, Kobe University, 2.Department of Planetology, Graduate School of Science, Kobe University, 3.Department of Planetology, Faculty of Science, Kobe University, 4.Graduate school of environmental studies, Nagoya University)

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