Session outline
| Solid Earth Sciences (S) | ||
|---|---|---|
| Session Sub-category | Volcanology(VC) | |
| Session ID | S-VC43 | |
| 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. This session is categorized as a J-session; however, slides and posters may be prepared in English, and presentations in English are also welcome. |
|
| Presentation Format | Oral and Poster presentation | |
| Time | Presentation No | Title | Presenter |
|---|---|---|---|
| Oral Presentation May 26 AM1 | |||
| 9:00 - 9:15 | SVC43-01 | Temporal changes in pre-eruptive Rayleigh wave dominance at Japanese volcanoes | Takashi Hirose |
| 9:15 - 9:30 | SVC43-02 | Flank instability of Mauna Loa Volcano, Hawai‘i, modulated by magma intrusion and eruption | Mizuki Matsuda |
| 9:30 - 9:45 | SVC43-03 | Magma degassing and fragmentation processes estimated from very-long-period events and tremor at Nevado del Ruiz volcano, Colombia | Hiroyuki Kumagai |
| 9:45 - 10:00 | SVC43-04 | Temporal frequency variation of volcanic long-period events at Kusatsu-Shirane Volcano and its relation to the hydrothermal system | Azusa Mori |
| 10:00 - 10:15 | SVC43-05 | Recent Seismic and Volcanic Activity in the southern Hida Mountain range, Central Japan | Shiro Ohmi |
| 10:15 - 10:30 | SVC43-06 | Infrasound investigation of fumarolic activity at Iwodani, Kirishima volcano group | Kazuya Yamakawa |
| Oral Presentation May 26 AM2 | |||
| 10:45 - 11:00 | SVC43-07 | Seismic velocity characteristics beneath active volcanoes in Japan | Takeshi Nishimura |
| 11:00 - 11:15 | SVC43-08 | Imaging the three-dimensional S-wave velocity structure beneath the Aira caldera using dense nodal seismic observations | Ryota Takagi |
| 11:15 - 11:30 | SVC43-09 | Relationship between 3D seismic velocity structure and seismic activity beneath Aira Caldera and Sakurajima | Takeshi Tameguri |
| 11:30 - 11:45 | SVC43-10 | Stress and strength properties around Kirishima volcano, Kyushu, Japan estimated by first P wave polarity data | Satoshi Matsumoto |
| Oral Presentation May 26 PM1 | |||
| 13:45 - 14:00 | SVC43-11 | Estimation of volume changes of volcanic sources in Kyushu volcanoes through simultaneous inversion with interplate slip | Hiroshi Munekane |
| 14:00 - 14:15 | SVC43-12 | Detection of Volcanic Deformation Attributed to Deep Volcanic Pressure Sources Using GEONET F5 Data | Isao Kageyama |
| 14:15 - 14:30 | SVC43-13 | Constraints on the 2000–2001 Mount Fuji inflation source from GNSS data | Itsuki Sasao |
| 14:30 - 14:45 | SVC43-14 | Classification of transient crustal deformation around Hakone volcano, central Japan, based on GNSS data | Soichiro Tashiro |
| 14:45 - 15:00 | SVC43-15 | Finite element modeling of the 2015 inflation event at Sakurajima volcano using crustal deformation and gravity data | Takahito Kazama |
| 15:00 - 15:15 | SVC43-16 | Magma intrusion process into the pressure source leading to the 2011 eruption of Shinmoe-dake in Kirishima Volcano, Japan | Jun Oikawa |
| Oral Presentation May 26 PM2 | |||
| 15:30 - 15:45 | SVC43-17 | Magnetotelluric Investigation of Volcanic Hydrothermal Systems at Bromo Volcano, East Java, Indonesia and Correlation with Ongoing Unrest | Agnis Triahadini |
| 15:45 - 16:00 | SVC43-18 | Shallow hydrothermal system at Mt. Meakandake based on drone-borne aeromagnetic surveys | Niigawa Ryoo |
| 16:00 - 16:15 | SVC43-19 | Estimation of Sulfur Dioxide Mass Released by Individual Eruptions at Sakurajima | TOSHIYA MORI |
| 16:15 - 16:30 | SVC43-20 | Preliminary Results of Long-Term Autonomous Radon Monitoring at Izu-Oshima | Fumiaki Tsunomori |
| 16:30 - 16:45 | SVC43-21 | 12th Century Eruptions of Asama-Maekake Volcano and a proposal of a new “Asama-type eruption” | Maya Yasui |
| Presentation No | Title | Presenter |
|---|---|---|
| Poster Presentation May 26 PM3 | ||
| SVC43-P01 | 3D geometry-free imaging of volcanic deformation sources using GNSS and InSAR observations at Kussharo Caldera and Tokachidake volcano | Quentin Dumont |
| SVC43-P02 | Eruption process and petrology of Isoya Lava, Southwest Hokkaido, Japan | Satoshi Okamura |
| SVC43-P03 | Hypocenter Determination Using the Relative ASL Method – A case study at Mt. Iwate | Jun Okada |
| SVC43-P04 | Evolution of magma plumbing system of the 2.5-ka lavas at Chokai volcano, NE Honshu Arc | Kana Shibuya |
| SVC43-P05 | Seismic waves excited by the crack source contraction due to water condensation and their relation to crack resonances | Masayuki Nakano |
| SVC43-P06 | Re-evaluation of magma supply volume during the 2004 Asama eruptions using geodetic data | Keita Funatsu |
| SVC43-P07 | Magnetotelluric (MT) Investigation of the 3D Resistivity Structure Beneath Niigata-Yakeyama Volcano | Kexing Wang |
| SVC43-P08 | Leveling surveys conducted at Jigokudani, Tateyama Volcano, in September 2025 | Kohei Hotta |
| SVC43-P09 | Seismic wave velocity structure around the Hida Mountains range, Central Japan | Haruki Kuwano |
| SVC43-P10 | Three-dimensional Resistivity Structure of Yakedake Volcano, Central Japan, Revealed by Wideband Magnetotelluric Observations | Ryokei Yoshimura |
| SVC43-P11 | Repeated fracturing observed in the internal structure of the ejected blocks from the 2014 eruption of Mt. Ontake | Atsuko Namiki |
| SVC43-P12 | Re-estimation of focal mechanisms of volcanic earthquakes associated with the 2014 Mt. Ontake eruption using waveform correlation analysis and dense seismic network data | Taira Morozumi |
| SVC43-P13 | Seismic Background Level Increased Prior to the 2015 Hakone Phreatic Eruption Despite Declining Seismicity | Tsukasa Kobayashi |
| SVC43-P14 | Deformations Detected by Precise Levelling and GNSS Campaign Surveys in the Hakone volcano (2015-2025) | Masayuki Murase |
| SVC43-P15 | Application of the PF method to volcanic earthquakes on Izu-Oshima (2) | Ryohei Kawaguchi |
| SVC43-P16 | Verification of tilt changes associated with the 1986 Izu-Oshima fissure eruption—Toward timely and appropriate issuance of Volcanic Warnings— | Saeri Narita |
| SVC43-P17 | Long-Term Variations of Total Magnetic Intensity at Izu-Oshima Volcano | Yusaku Matsumoto |
| SVC43-P18 | Reconsideration of the eruption history on the Izu-Oshima Volcano 1000 years ago by the detection of the Nijima-Kudamaki-Atchiyama Tephra | Mioko Kawabata |
| SVC43-P19 | Estimation of scattering and intrinsic attenuation of surface wave using seismic interferometry in Hachijojima Island | Toshiki Watanabe |
| SVC43-P20 | Lithic Fragments Concentrated in the Benri Subunit of the Aso-4 Pyroclastic Flow Deposit, Northwestern Aso Volcano, Central Kyushu | Taro Shinmura |
| SVC43-P21 | Spatiotemporal Variations in the Shallow Magnetization Structure Following the 2011 Eruption of Shinmoedake Volcano, Kirishima | Ryosuke Ito |
| SVC43-P22 | High-Frequency and High-Resolution Observations by the Small SAR Satellite StriX: A Case Study of the 2025 Eruption of Shinmoedake Volcano | Morishita Yu |
| SVC43-P23 | Examining Seismic Activity in the Kirishima Volcanic Region following the 2024 Hyuga-nada Earthquake (M7.1) | Ayato Soga |
| SVC43-P24 | Estimation of ambient noise surface wave phase velocities using nodal seismometers and DAS data: Towards 3D S-wave velocity structure imaging beneath Aira Caldera. | Shun Fukushima |
| SVC43-P25 | Verification of Gravity Change Detectability Using Differences in Continuous Gravity Records Between Two Locations: Case Study at Sakurajima | Ayana Gomi |
| SVC43-P26 | Long-term gravity change around Sakurajima volcano, revealed by repeated relative gravity measurements from 1998 to 2026 | Takahito Kazama |
| SVC43-P27 | Unsupervised extraction of activity regimes and deviations at Sakurajima Volcano from multi-component time series | Yu Iriyama |
| SVC43-P28 | Temporal changes in deformation sources at Satsuma-Iwojima Volcano since 2021 detected by ALOS-2/4 and GNSS | Misa Ichimura |
| SVC43-P29 | Significant activity of volcano-tectonic earthquakes in September 2025 at Suwanosejima volcano | Kazane Iwakiri |