[J] Poster

S (Solid Earth Sciences ) » S-VC Volcanology

[S-VC45] Active Volcanism

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)

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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[SVC45-P01] Unrest event at Nakamachinesiri crater of Meakandake in 2019; insight from total magnetic field observations

*Ryo Tanaka¹ (1.Hokkaido University,Institute of Seismology and Volcanology)

[SVC45-P02] Possible very micro low-frequency earthquakes in the Showa-Shinzan lava dome in the Usu volcanic region captured by dense seismic campaign

*Akiko Takeo¹, Motoko Ishise¹, Kiwamu Nishida¹, Hiroshi Aoyama², Yosuke Aoki¹ (1.Earthquake Research Institutute, the University of Tokyo, 2.Institute of Seismology and Volcanology, Faculty of Science, Hokkaido University)

[SVC45-P03] Detection of long-period volcanic earthquakes using continuous wavefield processing system

*Mare Yamamoto¹ (1.Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University)

[SVC45-P04] Geothermal Activity by Observation using Infrared Thermal Camera during the 2018-19 Volcanic Activity at Azumayama

*Susumu Seki¹, Masayuki Oishi¹, Tomoyuki Matsumura¹ (1.Japan Meteorological Agency)

[SVC45-P05] Reactivation of volcanic activity on May 2019 at Azumayama – Importance of precise ground deformation monitoring near the crater

*Jun Okada¹, Yu Nihara², Shin Chikasawa³, Takuya Yamamura³, Susumu Seki³, Koki Sasaki², Akimichi Takagi⁴, Keiichi Fukui⁴ (1.Volcanology Research Department, Meteorological Research Institute, JMA, 2.Regional Volcanic Observation and Warning Center, Sendai Regional Headquarters, JMA, 3.Seismology and Volcanology Division, Sendai Regional Headquarters, JMA, 4.Volcanology Division, Seismology and Volcanology Department, JMA)

[SVC45-P06] Detection of crustal deformation owing to volcanic activity of the Oana crater in the Mt. Azuma area using interferometric synthetic aperture radar and pressure source estimation

*Sota Nagagata¹, Koichi Suzuki¹, Toru Mogi² (1.Hokkaido University, 2.Tokyo Institute of Technology)

[SVC45-P07] Consideration of JMA tilt meter data around volcano using boundary element method (2)

*Ryohei Kawaguchi¹ (1.Meteorological Research Institute)

[SVC45-P08] Imaging of the volcanic activity process beneath the Yugama crater at Kusatsu-Shiranesan volcano

*Akimichi Takagi¹, Tsukasa Kobayashi¹, Takahiro Kitagawa¹, Kousuke Takahashi¹, Koji Kato¹, Jun’ichi Miyamura¹ (1.Seismology and Volcanology Department, Japan Meteorological Agency)

[SVC45-P09] Self-potential and geomagnetic total intensity observations at Motoshirane volcano after the 2018 eruption (2)

*Akira Yamazaki¹, Hideki Iino¹, Shin Akira¹, Jun Shimokawa¹ (1.Kakioka Magnetic Observatory)

[SVC45-P10] Crack resonances at an LP source beneath Kusatsu-Shirane volcano triggered by volume changes with vapor condensation

*Kimiko Taguchi¹, Hiroyuki Kumagai¹, Yuta Maeda¹ (1.Nagoya University Environmental Studies)

[SVC45-P11] Forward analysis of seismic waves accompanied by tilt ground motion during the eruption of Mt. Motoshirane, Japan, on January 23, 2018

*Ryohei Takahashi¹, Yuta Maeda¹, Toshiki Watanabe¹ (1.Graduate School of Environmental Studies, Nagoya University)

[SVC45-P12] Real time monitoring of underground temperature in Jigokudani, Midagahara volcano using LPWA devices

*Tohru Watanabe¹ (1.University of Toyama)

[SVC45-P13] Development of a system for FEM-based crustal deformation analysis

*Tomokazu Kobayashi¹, Shinya Yamada¹ (1.GSI of Japan)

[SVC45-P14] Silisic magma reservoirs beneath Fuji Volcano, Japan, constrained from interstitial melt in gabbroic xenoliths

*Megu Otsuka¹, Hidemi Ishibashi², Natsumi Hokanishi³, ATSUSHI YASUDA³ (1.Graduate School of Integrated Science and Technology, Shizuoka University, 2.Shizuoka University, 3.Earthquake Research Institute,The University of Tokyo)

[SVC45-P15] Corrections of individual properties of relative gravimeters by using cooperative precise gravity measurement data in Izu-Oshima volcano

*Shin'ya Onizawa¹, Ryuichi Nishiyama², Shuhei Okubo^2,3, Yutaka Nagaoka¹, Yasuo Hirayama⁴, Takanori Ishihara⁴, Kensuke Matsuda⁴, Yuya Kaneko⁴, Yoshihiro Ueda⁴, Yuichi Imanishi², Atsushi Watanabe², Miwako Ando², Shikou Sakashita² (1.Meteorological Research Institute, JMA, 2.Earthquake Research Institute, The University of Tokyo, 3.Southwest Jiaotong University, 4.Seismological and Volcanological Department, JMA)

[SVC45-P16] Temporal gravity change observed on Izu-Oshima Island in 2010's

*Ryuichi Nishiyama¹, Yuichi Imanishi¹, Shin'ya Onizawa², Shuhei Okubo^1,3, Miwako Ando¹, Atsushi Watanabe¹, Shikou Sakashita¹, Yutaka Nagaoka², Yoshiyuki Tanaka⁴, Hidefumi Watanabe^1,5 (1.Earthquake Research Institute, The University of Tokyo, 2.Volcanology Research Department, Meteorological Research Institute, JMA, 3.Southwest Jiaotong University, 4.Graduate School of Science, The University of Tokyo, 5.Disaster Prevention Division, Tokyo Metropolitan Government)

Cancelled

[SVC45-P17] Distribution and characteristics of N3 period sediments around Habu and Ryuozaki, southeastern Izu Oshima

*Haruki Itou¹, Kazuya Hatase¹, Syou Yatuka¹, Izumi Sakamoto¹ (1.School of Marine Science and Technology, Tokai University)

[SVC45-P18] Vesiculation texture and change in the amount of phenocrysts of the summit eruption of the Izu-Oshima volcano - Comparison between the An'ei and the 1986 eruption -

*Yuya Ikenaga¹, Fukashi Maeno¹, ATSUSHI YASUDA¹ (1.Earthquake Research Institute, The University of Tokyo)

[SVC45-P19] A study on surface displacement and pressure source of Kozushima Island based on InSAR analysis

*Wataru Uehara¹, Yoshiya Oda¹ (1.Tokyo Metropolitan University)

[SVC45-P20] Automatic Seismic Wave Detection with Deep Learning
- Application to temporary observation data at Hachijojima Island -

*Ryohei Tottori¹, Hiroyuki Azuma¹, Yoshiya Oda¹, Toshifumi Matsuoka² (1.Tokyo Metropolitan University, 2.Fukada Geological Institute)

[SVC45-P21] Temporary dense seismic observation in Hachijojima Island

*Ryotaro Kanemaru¹, Yoshiya Oda¹, Hiroyuki Azuma¹, Kentaro Omori¹, Syotaro Kanke¹, Toshiki Watanabe² (1.Tokyo Metropolitan University, 2.Earthquake and Volcano Research Center Graduate School of Environmental Studies, Nagoya University)

[SVC45-P22] Lava discharge rate in Nishinoshima volcano, Ogasawara Islands revealed using ALOS-2/PALSAR-2

*Shinobu Ando¹, Satoshi Okuyama², Shinichi Matsusue³ (1.Seismology and Tsunami Research Department, Meteorological Research Institute, 2.Volcanology Research Department, Meteorological Research Institute, 3.Volcanology Division, Japan Meteorological Agency)

[SVC45-P23] Spatial variation of magma compositions at the Abu Monogenetic Volcano Group, SW Japan

*Kenyo U¹, Koji Kiyosugi¹, Yasuko Itoh², Yoshiyuki Tatsumi¹ (1.Kobe University, 2.Hagi Geopark Promotion Division)

[SVC45-P24] Repeated aeromagnetic survey on Kuju Volcano using drone, unmanned multicopter.

*Mitsuru Utsugi¹, Takeshi Hashimoto², Akinori Satoh², Noriko Tada³, Toyonobu Ota⁴, Shin Yoshikawa¹, Hiroyuki Inoue¹ (1.Kyoto University, 2.Hokkaido University, 3.JAMSTEC, 4.Tierra Tecnica)

Cancelled

[SVC45-P25] Estimation of source location of short-period tremors at Aso volcano by array analysis

*hirotaka tanaka¹, Takahiro Ohkura², Hiroyuki Inoue², Shin Yoshikawa² (1.kyoto university, 2.Aso Volcanological Laboratory)

[SVC45-P26] Seismo-acoustic signals before ash emissions at Aso volcano, Japan

*Akihiko Yokoo¹ (1.Graduate School of Science, Kyoto University)

[SVC45-P27] Waveform analysis of infrasound pulses observed before the phreatomagmatic explosion on October 23, 2015

*Yuto Kozawa¹, Akihiko Yokoo¹ (1.Graduate School of Science, Kyoto University)

[SVC45-P28] Melt inclusion constraints on the pre-eruptive process of Kirishima-Ohachi 1235 subplinian eruption

*Yoshiharu Iwaki¹, Hidemi Ishibashi², Natsumi Hokanishi³, ATSUSHI YASUDA³, Toru Ishikawa⁴ (1.Shizuoka University Graduate School of Integrated Science and Technology, 2.Shizuoka University, 3.Earthquake Research Institute,The University of Tokyo, 4.Kirishima Geopark Council)

[SVC45-P29] Temporal and spatial variations of helium isotope ratios in volcanic gases at Kirishima volcanic group

*Hirochika Sumino¹, Kotaro Toyama¹, Takeshi Ohba², Muga Yaguchi³ (1.Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 2.Department of Chemistry, Tokai University, 3.Meteorological Research Institute)

[SVC45-P30] Vertical ground deformation in Sakurajima volcano measured by precise leveling survey (during Nov. 2018 - Nov. 2019)

*Keigo Yamamoto¹, Takeshi Matsushima², Shin Yoshikawa³, Hiroyuki Inoue³, Tadaomi Sonoda¹, Taishi Yamada¹, Yichen Tang², Koki Yoshinaga², Takamitsu Ikegame⁴, Hiroshi Kishimoto⁴, Takahiro Ohkura³ (1.Disaster Prevention Research Institute, Kyoto University, 2.Faculty of Sciences, Kyushu University, 3.Graduate School of Science, Kyoto University, 4.Japan Meteorological Agency)

[SVC45-P31] Changes in carrier phase residuals of GPS satellite radio waves following the eruptions of Sakurajima
-Data analysis from 2013 to 2019-

*Yukako Asakura¹, Takeshi Nishimura¹, Yusaku Ohta¹, Masayuki Kano¹ (1.Graduate school of science, Tohoku University )

[SVC45-P32] Detection of volcanic earthquakes and estimation of internal attenuation structure beneath the Kikai submarine caldera

Yasutomo Seto¹, *Hiroko Sugioka¹, Tsutomu Takahashi², Yojiro Yamamoto² (1.Kobe University, 2.JAMSTEC)

[SVC45-P33] Occurrence and distribution of pyroclastic fall deposits of Kuchinoerabujima volcano 2020 eruption

*Masashi NAGAI¹, Shojiro Nakagawa², Yu Iriyama³, Takahiro Miwa¹, Setsuya Nakada¹ (1. Volcano Research Department, National Research Institute for Earth Science and Disaster Resilience, 2.Yakushima Chigaku Club, 3.Research and Industrial Collaboration Department, Kyushu University)

[SVC45-P34] Three-dimensional resistivity imaging of Taal Volcano, Philippines

*Yusuke Yamaya¹, Paul Alanis² (1.National Institute of Advanced Industrial Science and Technology, 2.Philippine Institute of Volcanology and Seismology)

[SVC45-P35] Detection of the volcanic plume by 19 February 2018 eruption of Mount Sinabung deduced from GNSS post-fit phase residual analysis

*Yusaku Ohta¹, Masato Iguchi², Gunawan Hendra³, Umar Rosadi³, Estu Kriswati³ (1.Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University, 2.Sakurajima Volcano Research Center, Disaster Prevention Research Institute, Kyoto University, 3.Center for Volcanology and Geological Hazard Mitigation)

[SVC45-P36] The performance of the back elevation angle estimation of 3-dimensional infrasonic small array observation

*Kazuya Yamakawa¹, Mie Ichihara¹, Claudia Sánchez², Wataru Ikeda¹, Giorgio Lacanna², Maurizio Ripepe² (1.Earthquake Research Institute, University of Tokyo, Japan, 2.Department of Earth Sciences, University of Florence, Italy)

[SVC45-P37] A trial to quantify volcanic activities using the JMA unified earthquake catalog and the ETAS model

*Yuta Maeda¹ (1.Nagoya University)

[SVC45-P38] Temporal relationship between seismic activity and ground deformation by GNSS data with applying the stacking method

*Yo Kanno¹, Akimichi Takagi¹, Takashi YOKOTA², Kazuki Miyaoka¹ (1.Seismology and Volcanology Department, Japan meteorological agency, 2.Aichi Institute of Technology)

[SVC45-P39] Multi-sensor system with air blowers for airborne volcanic gas survey using drones: an improvement of a sensor response time

*Kohki Matsuura¹, Akihiko Terada¹, Toshiya Mori², Takato Ono² (1.Volcanic Fluid Research Center, Tokyo Institute of Technology, 2.Chemical Research Center, Graduate School of Science, The Univercity of Tokyo)

[SVC45-P40] Tephra segregation profiles from Vulcanian eruptions on Sakurajima volcano, Japan, based on settling velocity observations

*Kosei Takishita¹, Masato Iguchi², Alexandros Panagiotis Poulidis², Tadaomi Sonoda² (1.Division of Earth and Planetary Sciences, Graduate School of Science, Kyoto University, 2.Sakurajima Volcano Research Center, DPRI, Kyoto Univ.)

Session information

[S-VC45] Active Volcanism