Thu. May 29, 2025 1:45 PM - 3:15 PM International Conference Room (IC) (International Conference Hall, Makuhari Messe)

[J] Oral
| S (Solid Earth Sciences )
| S-TT Technology & Techniques

[S-TT42] Advancing Earth Science through Optic Fiber Sensing Techniques and Integrated Analysis

convener:Takeshi Tsuji(Department of Systems Innovation, the University of Tokyo), Masatoshi Miyazawa(Disaster Prevention Research Institute, Kyoto University), Eiichiro Araki(Japan Agency for Marine-Earth Science and Technology), Kentaro Emoto(Graduate School of Science, Kyushu University), Chairperson:Takeshi Tsuji(Department of Systems Innovation, the University of Tokyo), Masatoshi Miyazawa(Disaster Prevention Research Institute, Kyoto University), Eiichiro Araki(Japan Agency for Marine-Earth Science and Technology), Kentaro Emoto(Graduate School of Science, Kyushu University)

Thu. May 29, 2025 3:30 PM - 5:00 PM International Conference Room (IC) (International Conference Hall, Makuhari Messe)

[J] Oral
| S (Solid Earth Sciences )
| S-TT Technology & Techniques

[S-TT42] Advancing Earth Science through Optic Fiber Sensing Techniques and Integrated Analysis

convener:Takeshi Tsuji(Department of Systems Innovation, the University of Tokyo), Masatoshi Miyazawa(Disaster Prevention Research Institute, Kyoto University), Eiichiro Araki(Japan Agency for Marine-Earth Science and Technology), Kentaro Emoto(Graduate School of Science, Kyushu University), Chairperson:Eiichiro Araki(Japan Agency for Marine-Earth Science and Technology), Kentaro Emoto(Graduate School of Science, Kyushu University), Takeshi Tsuji(Department of Systems Innovation, the University of Tokyo), Masatoshi Miyazawa(Disaster Prevention Research Institute, Kyoto University)

Thu. May 29, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

[J] Poster
| S (Solid Earth Sciences )
| S-TT Technology & Techniques

[S-TT42] Advancing Earth Science through Optic Fiber Sensing Techniques and Integrated Analysis

convener:Takeshi Tsuji(Department of Systems Innovation, the University of Tokyo), Masatoshi Miyazawa(Disaster Prevention Research Institute, Kyoto University), Eiichiro Araki(Japan Agency for Marine-Earth Science and Technology), Kentaro Emoto(Graduate School of Science, Kyushu University)

Tue. May 27, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

[J] Poster
| H (Human Geosciences )
| H-CG Complex & General

[H-CG22] Monitoring the Comprehensive Nuclear-Test-Ban Treaty: Status, operations, and scientific application

5:15 PM - 7:15 PM

[HCG22-P01] Recent progress on sustainable pressure observation at the seafloor

*Hiroyuki Matsumoto¹, Eiichiro Araki¹, Shuhei Nishida¹, Yuya Machida¹, Shuhei Tsuji¹, Keisuke Ariyoshi¹ (1.Japan Agency for Marine-Earth Science and Technology)

Thu. May 29, 2025 9:00 AM - 10:30 AM 201A (International Conference Hall, Makuhari Messe)

[E] Oral
| S (Solid Earth Sciences )
| S-SS Seismology

[S-SS04] Seismological advances in the ocean

9:45 AM - 10:00 AM

[SSS04-04] Seismic imaging with teleseismic waves and ambient noises observed by a submarine cable in the Nankai subduction zone with distributed acoustic sensing

*Takashi Tonegawa¹, Eiichiro Araki¹ (1.Japan Agency for Marine-Earth Science and Technology)

Thu. May 29, 2025 10:45 AM - 12:15 PM 201A (International Conference Hall, Makuhari Messe)

[E] Oral
| S (Solid Earth Sciences )
| S-SS Seismology

[S-SS04] Seismological advances in the ocean

10:45 AM - 11:00 AM

[SSS04-07] Low-frequency ocean gravity waves triggered by tropical cyclones via seafloor distributed acoustic sensing

*Hou-Sheng Cheng^1,2, Takashi Tonegawa², Emmy T. Y. CHANG¹, Eiichiro Araki² (1.Institute of Oceanography, National Taiwan University, Taiwan, 2.Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Japan)

Mon. May 26, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

[J] Poster
| S (Solid Earth Sciences )
| S-VC Volcanology

[S-VC32] Active Volcanism

5:15 PM - 7:15 PM

[SVC32-P32] Monitoring activities of Izu volcanic islands based on DAS observations using seafloor fiber-optic cables: preliminary results

*Masaru Nakano¹, Tomoya Nakajima¹, Satoru Baba¹, Eiichiro Araki¹, Shigeaki Ono¹ (1.Japan Agency for Marine-Earth Science and Technology)

Thu. May 29, 2025 1:45 PM - 3:15 PM International Conference Room (IC) (International Conference Hall, Makuhari Messe)

[J] Oral
| S (Solid Earth Sciences )
| S-TT Technology & Techniques

[S-TT42] Advancing Earth Science through Optic Fiber Sensing Techniques and Integrated Analysis

2:00 PM - 2:15 PM

[STT42-02] Potential and Challenges of Global Seafloor Optical Fiber Sensing

*Eiichiro Araki¹, Shuhei Masuda¹, Hitoshi KANEKO¹ (1.Japan Agency for Marine-Earth Science and Technology)

2:15 PM - 2:30 PM

[STT42-03] Comparison of teleseismic strain fields obtained by array analysis of seismometers and direct measurement of strainmeters at seafloor and deep seafloor observatory

*Shuhei Tsuji¹, Eiichiro Araki¹, Hiroyuki Matsumoto¹, Yuya Machida¹, Takashi Yokobiki¹ (1.Japan Agency for Marine-Earth Science and Technology)

2:30 PM - 2:45 PM

[STT42-04] Development of a Quasi-Real-Time Analysis System for Seismic Activity in the Shallow Subduction Zone Using Seafloor DAS and OBS Records

*Akiko Toh¹, Satoru Baba¹, Eiichiro Araki¹ (1.JAMSTEC)

2:45 PM - 3:00 PM

[STT42-05] Observation of low frequency earthquakes by distributed acoustic sensing around the Tsugaru Strait

*Satoru Baba¹, Eiichiro Araki¹, Takashi Yokobiki¹, Tadashi Amano², Takuji Yoshizuka², Takuma Sekiguchi² (1.Japan Agency for Marine-Earth Science and Technology, 2.Electric Power Development Co.,Ltd.)

Thu. May 29, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

[J] Poster
| S (Solid Earth Sciences )
| S-TT Technology & Techniques

[S-TT42] Advancing Earth Science through Optic Fiber Sensing Techniques and Integrated Analysis

5:15 PM - 7:15 PM

[STT42-P02] FEM simulation of tidal responses of pore-pressure and strain records at a deep seafloor borehole observatory

*Shuhei Tsuji¹, Eiichiro Araki¹, Hiroyuki Matsumoto¹, Ettore Barbieri¹, Mikito Furuichi¹, Yuya Machida¹, Takashi Yokobiki¹ (1.Japan Agency for Marine-Earth Science and Technology)

Wed. May 28, 2025 9:00 AM - 10:30 AM International Conference Room (IC) (International Conference Hall, Makuhari Messe)

[E] Oral
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG45] Science of slow-to-fast earthquakes

9:15 AM - 9:30 AM

[SCG45-38] Observational Efforts toward Understanding the Slow Slip to the Trench in the Subduction Zone of Megathrust Earthquake Source Regions

*Eiichiro Araki¹, Kohtaro Ujiie², Hiroko Sugioka⁴, Masanao Shinohara³, Hajime Shiobara³, Takeshi Akuhara³, Keisuke Ariyoshi¹, Takashi Tonegawa¹, Aki Ito¹, shuhei nishida¹, takashi yokobiki¹ (1.Japan Agency for Marine-Earth Science and Technology, 2.Tsukuba University, 3.ERI, the University of Tokyo, 4.Kobe University)

Wed. May 28, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

[E] Poster
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG45] Science of slow-to-fast earthquakes

5:15 PM - 7:15 PM

[SCG45-P30] Delayed activation of shallow tremors in the Nankai Trough after the M 7.6 Noto Peninsula earthquake

*Satoru Baba¹, Eiichiro Araki¹, Takane Hori¹ (1.Japan Agency for Marine-Earth Science and Technology)

Sun. May 25, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

[E] Poster
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG52] Inter-segment Tectonics: Interdisciplinary Research on Responses to Plate Subduction

5:15 PM - 7:15 PM

[SCG52-P01] Monitoring of plate coupling along the Nankai Trough using seafloor observation networks: A case of the 2024 Hyuga-nada Earthquake

*Keisuke Ariyoshi¹, Eiichiro Araki¹, Hiroyuki Matsumoto¹, Yuya Machida¹, Shuhei Tsuji¹, Takashi Yokobiki¹, Shuhei Nishida¹, Shuichiro Yada¹, Takeshi Iinuma¹, Kan Aoike¹, Yasuyuki Nakamura¹, Gou Fujie¹, Takane Hori¹, Nobu Eguchi¹, Shuichi Kodaira¹ (1.Japan Agency for Marine-Earth Science and Technology)

Eiichiro Araki

Convener, Chairperson

[S-TT42] Advancing Earth Science through Optic Fiber Sensing Techniques and Integrated Analysis

[S-TT42] Advancing Earth Science through Optic Fiber Sensing Techniques and Integrated Analysis

[S-TT42] Advancing Earth Science through Optic Fiber Sensing Techniques and Integrated Analysis

Speaker, Author, Co-Author

[H-CG22] Monitoring the Comprehensive Nuclear-Test-Ban Treaty: Status, operations, and scientific application

[HCG22-P01] Recent progress on sustainable pressure observation at the seafloor

[S-SS04] Seismological advances in the ocean

[SSS04-04] Seismic imaging with teleseismic waves and ambient noises observed by a submarine cable in the Nankai subduction zone with distributed acoustic sensing

[S-SS04] Seismological advances in the ocean

[SSS04-07] Low-frequency ocean gravity waves triggered by tropical cyclones via seafloor distributed acoustic sensing

[S-VC32] Active Volcanism

[SVC32-P32] Monitoring activities of Izu volcanic islands based on DAS observations using seafloor fiber-optic cables: preliminary results

[S-TT42] Advancing Earth Science through Optic Fiber Sensing Techniques and Integrated Analysis

[STT42-02] Potential and Challenges of Global Seafloor Optical Fiber Sensing

[STT42-03] Comparison of teleseismic strain fields obtained by array analysis of seismometers and direct measurement of strainmeters at seafloor and deep seafloor observatory

[STT42-04] Development of a Quasi-Real-Time Analysis System for Seismic Activity in the Shallow Subduction Zone Using Seafloor DAS and OBS Records

[STT42-05] Observation of low frequency earthquakes by distributed acoustic sensing around the Tsugaru Strait

[S-TT42] Advancing Earth Science through Optic Fiber Sensing Techniques and Integrated Analysis

[STT42-P02] FEM simulation of tidal responses of pore-pressure and strain records at a deep seafloor borehole observatory

[S-CG45] Science of slow-to-fast earthquakes

[SCG45-38] Observational Efforts toward Understanding the Slow Slip to the Trench in the Subduction Zone of Megathrust Earthquake Source Regions

[S-CG45] Science of slow-to-fast earthquakes

[SCG45-P30] Delayed activation of shallow tremors in the Nankai Trough after the M 7.6 Noto Peninsula earthquake

[S-CG52] Inter-segment Tectonics: Interdisciplinary Research on Responses to Plate Subduction

[SCG52-P01] Monitoring of plate coupling along the Nankai Trough using seafloor observation networks: A case of the 2024 Hyuga-nada Earthquake