Solid Earth Sciences (S)
Session Sub-category Volcanology(VC)
Session ID S-VC32
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 26 PM1
13:45 - 14:00 SVC32-01 Characteristics of Earthquake Swarm Activity in the Aira Caldera Takeshi Tameguri
14:00 - 14:15 SVC32-02 Modeling of ground deformation associated with the 2015 magma intrusion event of Sakurajima volcano, Japan Takumi Kemmochi
14:15 - 14:30 SVC32-03 Observation of Ground Deformation in Aira Caldera Using A Seabed Benchmark System (II) Daisuke Miki
14:30 - 14:45 SVC32-04 Studying Active Volcanism with Joint Muon and Ground Surface Deformation Monitoring at Sakurajima Volcano Laszlo Olah
14:45 - 15:00 SVC32-05 Airborne measurements of volcanic gases using a UAV to elucidate equilibrium temperature at Sakurajima volcano Ryunosuke Kazahaya
15:00 - 15:15 SVC32-06 Structural state of plagioclase in volcanic ash collected in response to the eruption of Sakurajima Volcano Tomoaki Matsui
Oral Presentation May 26 PM2
15:30 - 15:45 SVC32-07 Discharge rate, component and chemical composition of ash-fall deposits during the 2019–2020 magmatic activity at Nakadake first crater, Aso Volcano, Japan Yasuo Miyabuchi
15:45 - 16:00 SVC32-08 Relation between volcanic ash emissions and volcanic tremor amplitude from the first crater of Nakadake, Aso Volcano. Takahiro Ohkura
16:00 - 16:15 SVC32-09 Seismic tremor associated with SO2 gas emissions after the 2020 eruption at Taal volcano, Philippines Hiroyuki Kumagai
Oral Presentation May 27 AM1
9:00 - 9:15 SVC32-10 Characteristics of seismicity in and around active volcanoes in Japan Takeshi Nishimura
9:15 - 9:30 SVC32-11 Seismicity of Mt. Ontake in 2024–2025 Yuta Maeda
9:30 - 9:45 SVC32-12 Extraction of Multimodal Surface Wave Dispersion Curves in Volcanic Area: Case Study on Mt. Ontake, Central Japan Misaki Asai
9:45 - 10:00 SVC32-13 Spatiotemporal variations of hydrothermal cracks at volcanic long-period seismic sources Masayuki Nakano
10:00 - 10:15 SVC32-14 Reanalysis of tilt changes associating with the 1986 Izu Oshima flank fissure eruption: Verification of the dike intrusion process based on tilt data Saeri Narita
10:15 - 10:30 SVC32-15 Physical process of the onset event of volume increase in magma reservoir leading to the 2011eruption of Shinmoe-dake in Kirishima Volcano, Japan Jun Oikawa
Oral Presentation May 27 AM2
10:45 - 11:00 SVC32-16 Hydrothermal activity around the Ioyama after the 2018 eruption in Kirishima Volcano Yasuhisa Tajima
11:00 - 11:15 SVC32-17 Tracing the Magma Plumbing System of Kirishima Volcano through Helium Isotopes in Phenocrysts of the Volcanic Ejecta Rai Yoneda
11:15 - 11:30 SVC32-18 Development of UAV-mounted vertical sensor array system to estimate emission flux of hydrogen sulfide from fumarolic fields Yutaka Miyagi
11:30 - 11:45 SVC32-19 Volcanic activity assessment using temporal and spatial variations of helium isotope ratios around Ebinokogen Iwo-yama, Kirishima volcanic group, Japan Nanae Fukushima
11:45 - 12:00 SVC32-20 Assessment of subsurface structure based on measurements of soil gas fluxes from the surface Kazuki Sasa
Presentation No Title Presenter
Poster Presentation May 26 PM3
SVC32-P01 Re-investigation of the Latest Eruption deposits from Asahidake volcano, Taisetsu Volcano Group, Hokkaido, Japan Yuki Nishino
SVC32-P02 Volcanic gas measurement by using drone and Multi-GAS at Mt. Tokachi, Hokkaido in 2023 and 2024 Atsuya Onishi
SVC32-P03 Hypocenter Determinations for Three-Dimensional Seismic Velocity Structure in Usu Volcano Using JMA Picking Data Shin'ya Onizawa
SVC32-P04 Geodetic Observation around Mt. Usu by Leveling Survey Yuto Hirado
SVC32-P05 Crustal Deformation of Mt. Usu Derived from Two Periods of Airborne Laser Survey Data Takahiro Kurimoto
SVC32-P06 Long-period events at Mt. Iwate and their role in volcanic activity Mare Yamamoto
SVC32-P07 Crustal deformation associated with the unrest of Iwate Volcano in 2024 detected by InSAR analysis with ALOS-2/4 data Misa Ichimura
SVC32-P08 Source estimation of the 2024 Iwate Volcano unrest based on dense GNSS observation networks and strainmeter observations Yusaku Ohta
SVC32-P09 Increase in the seismicty of deep low-frequency earthquakes at the Mt. Iwate coincident with volcanic activity change in 2024. Genki Oikawa
SVC32-P10 Detection of deep expansion source of Mt. Zao by removing postseismic deformation Kazuhiro Kimura
SVC32-P11 Investigation of the relationship between the oscillation characteristics of harmonic tremors and fluid flow Yuto Hirayama
SVC32-P12 Temporal variation of volcanic Long-Period events during the 2018 unrest at Kusatsu-shirane Azusa Mori
SVC32-P13 Estimation of density and magnetization structure of Kusatsu-Shirane Volcano using joint inversion Hiroki Nagaike
SVC32-P14 Studies on the generation process of T-type earthquakes at Asama volcano in Japan in 2023 Yukihiro Takaki
SVC32-P15 Re-evaluation of dike volume change under Asama Volcano during the 2004 eruptions Keita Funatsu
SVC32-P16 Re-examination of stratigraphy and magmatic processes during the Stage 2 and Stage 3 of Tateyama volcanic activity, central Japan. Taiga Kokubo
SVC32-P17 Considering the fracture process causing the phreatic eruption from the internal structure of the ejected block from the 2014 eruption of Mt. Ontake Atsuko Namiki
SVC32-P18 High-resolution characterization of deep low-frequency earthquake activity beneath Mount Fuji using waveform classification Takuma Ikegaya
SVC32-P19 Three-dimensional resistivity structure of Hakone volcano, Japan. Hiromichi Shigmatsu
SVC32-P20 Measurement of vertical wind direction and speed distribution using UAV for highly accurate estimation of volcanic gas emission rate Yuji Miyashita
SVC32-P21 Continuous monitoring of the CO2/H2S ratio in volcanic gas at Hakone volcano Kotaro Toyama
SVC32-P22 Continuous observations on soil diffuse degassing of carbon dioxide at Izu-Oshima volcano, Japan Masaaki Morita
SVC32-P23 Application of the PF method to volcanic earthquakes on Izu-Oshima Ryohei Kawaguchi
SVC32-P24 Estimation of crustal deformation of Miyakejima volcano and its pressure sources by using GNSS data Rin Matsubara
SVC32-P25 Analysis of crustal deformation associated with volcanic activity in 2019–2020 at Aso volcano TAMAKI WAKABAYASHI
SVC32-P26 Volcanic tremors associated with the 2010 phreatic eruptions of Shinmoedake volcano KOJI KATO
SVC32-P27 Vertical ground deformation of Sakurajima volcano measured by precise leveling survey (results of the Nov. 2024 survey) Keigo Yamamoto
SVC32-P28 Seismic evidence for eruptible magma beneath the Tatun volcano group of northern Taiwan CHENG-HORNG LIN
SVC32-P29 Continuous Activity at Lewotobi Lakilaki Volcano Following the 2024 Eruption: Insights from Remotely Sensed Data Arif Aditiya
SVC32-P30 Systematic detection of pre-eruptive tilt changes worldwide and classification by time functions Yuta Maeda
SVC32-P31 A method for evaluating the resolution of deformation monitoring networks in and around active volcanoes Minemori Sato
SVC32-P32 Monitoring activities of Izu volcanic islands based on DAS observations using seafloor fiber-optic cables: preliminary results Masaru Nakano
SVC32-P33 Long-Term Monitoring of Thermal Anomalies at Priority Evaluation Volcanoes Using Himawari-8/9 and GCOM-C Satellites (2020–2024) KANEKO Takayuki
SVC32-P34 Attempts to visualize and characterize the chemical composition of volcanic gases Takeshi Ohba
SVC32-P35 Hydrogen sulfide concentrations at hot springs areas around volcanoes, as measured by miniature monitor in development maho okada