Solid Earth Sciences (S)
Session Sub-category Volcanology(VC)
Session ID S-VC26
Title Active Volcanism
Short Title Active Volcanism
Main Convener Name Yuta Maeda
Affiliation Nagoya University
Co-Convener 1 Name Takahiro Miwa
Affiliation National research institute for earth science and disaster prevention
Co-Convener 2 Name Takeshi Matsushima
Affiliation Institute of Seismology and Volcanology, Faculty of Science, Kyushu University
Session Language 
J
Scope 
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.
Presentation Format Oral and Poster presentation
Time Presentation No Title Presenter
Oral Presentation May 28 AM1
09:00 - 09:15 SVC26-01 Depth of source of volcanic ash ejected in the vulcanian eruptions at Shinmoe-dake and the image of eruption site below the summit crater Jun Oikawa
09:15 - 09:30 SVC26-02 Seismo-acoustic activities and surface hydrothermal phenomena at the South crater of Kirishima Iwo-Yama volcano Dan Muramatsu
09:30 - 09:45 SVC26-03 Spectral structure and nonlinear structure of harmonic tremors observed at Azuma volcano Yuto Hirayama
09:45 - 10:00 SVC26-04 Source model of deep low-frequency earthquakes beneath Zao volcano Takuma Ikegaya
10:00 - 10:15 SVC26-05 Classification of continuous seismograms during the eruption off Ioto in 2023 based on the wavelet scattering transform Takashi Hirose
10:15 - 10:30 SVC26-06 Relationship between volcano-tectonic earthquakes and eruption styles at Aso Volcano Takahiro Ohkura
Oral Presentation May 28 AM2
10:45 - 11:00 SVC26-07 Precursor seismic activity ditected approximately 15 minutes before the start of the major eruption of Hunga Tonga=Hunga Ha'apai volcano on January 15, 2022 Takuro Horiuchi
11:00 - 11:15 SVC26-08 Seismic Activity Change around Aira Caldera in Magma Accumulation Stage Takeshi Tameguri
11:15 - 11:30 SVC26-09 Vertical ground deformation of Sakurajima volcano measured by precise leveling survey (results of the Nov. 2023 survey) Keigo Yamamoto
11:30 - 11:45 SVC26-10 Investigation of ground deformation due to a pressure source resembling the geometry of the low S-wave velocity region beneaththe Aira caldera. Daisuke Miki
11:45 - 12:00 SVC26-11 Measurement of topographic changes during the 1977-82 Usu volcanic activity using SfM-MVS analysis Kazuki Yoshida
12:00 - 12:15 SVC26-12 Analysis of volcano deformation source of Izu-Oshima volcano using a volcano deformation calculation system considering volcanic topography Ryohei Kawaguchi
Oral Presentation May 28 PM1
13:45 - 14:00 SVC26-13 Uplift of Iwo-jima island during 2007-2023 detected by InSAR and its physical interpretation: Effect of thermal stress Youichiro Takada
14:00 - 14:15 SVC26-14 New insights into the structural development of caldera boundary faults through analogue sandbox experiments Ryuhei Sanjo
14:15 - 14:30 SVC26-15 Magma re-injection after the 7.3 ka Kikai-Akahoya eruption of the Kikai submarine caldera volcano Nobukazu Seama
14:30 - 14:45 SVC26-16 3-D resistivity structure under the Kikai submarine caldera volcano. Takumi Obata
14:45 - 15:00 SVC26-17 Shallow hydrothermal system beneath Numanotaira Crater, Adatara volcano, Japan, as inferred from audio-frequency magnetotelluric surveys Hiromasa Kawada
15:00 - 15:15 SVC26-18 Measurement of gaseous elemental mercury emissions from soils for evaluation of subsurface permeability of volcanoes Akihiko Terada
Presentation No Title Presenter
Poster Presentation May 28 PM3
SVC26-P01 Crustal deformation around Atosanupuri detected by ALOS-2/PALSAR-2 Interferometry. Satoshi Okuyama
SVC26-P02 Detailed description and eruption sequence of the Rishiri Wanko-no-sawa tephra and the Rishiri Hotoku tephra, Hokkaido. Mioko Kawabata
SVC26-P03 Flow path estimation of volcanic fluids from soil diffuse CO2 fluxes and ground temperature measurements at Mt. Usu Nayuta Izumi
SVC26-P04 Magmatic activity of the 1977-1978 eruption of Usu Volcano inferred from magnetite analysis Akihiko Tomiya
SVC26-P05 Volcanic long-period events triggered by progressive water condensation Masayuki Nakano
SVC26-P06 Gravity Anomaly Analysis at Kusatsu-Shirane Volcano Hiroki Nagaike
SVC26-P07 Three-dimensional VSV and VSH structures beneath Asama volcano inferred from seismic interferometry Yutaka Nagaoka
SVC26-P08 Exploring Waveform Characteristics and Inter-station Spectral Ratios in Very-Long-Period Events at Asama Volcano Victoria Hipatia Olivera Craig
SVC26-P09 Gas transport system inferred from chemical compositions of Iwatsubo-dani fumarole, Yakedake Volcano, Japan Kenshin Morita
SVC26-P10 Estimation of Dispersion Curves by the Frequency-Bessel Transform Method at Mt. Ontake, Central Japan Misaki Asai
SVC26-P11 Infrasonic and seismic observations of rockfalls at Hoei crater, Fuji volcano Kazuya Yamakawa
SVC26-P12 Deformations Detected by Precise Levelling and GNSS Campaign Surveys in the Hakone volcano (2015-2023) Masayuki Murase
SVC26-P13 Thermal infrared observation using UAV at Izu Oshima 3 Shinobu Ando
SVC26-P14 Reconstruction of 19th century eruptive activity on the Izu-Oshima Volcanic Island by using historical documents Nanami Jimba
SVC26-P15 Estimation of crustal deformation of Miyakejima volcano and its pressure sources by using continuous GNSS data Rin Matsubara
SVC26-P16 Extensometer records of short-term ground deformation prior to the Aso 2021 eruption Shohei Narita
SVC26-P17 Isotopic Compositions of Noble Gases in Olivine in Pumice of Shinmoe-dake 2011 Eruption Rai Yoneda
SVC26-P18 Estimation of Shallow Pressure Sources at Sakurajima Volcano Using Crustal Deformation Data Ayuka Joudoi
SVC26-P19 The source process of the explosion earthquake at Sakurajima Volcano of long-period and very-long-period bands Haruhisa Nakamichi
SVC26-P20 Seismic observations of Kikai caldera based on DAS using seafloor cables Masaru Nakano
SVC26-P21 Surface deformation of the Semeru volcano constrained by InSAR measurements Arif Aditiya