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

10:15 AM - 10:30 AM

[SSS04-06] Shear wave velocity structure in deep Ontong Java Plateau region by a joint finite-frequency inversion of body and surface wave data

★Invited Papers

*Yuko Kondo¹, Hiroko Sugioka¹, Masayuki Obayashi^1,2, Takehi Isse³, Kazunori Yoshizawa⁴ (1.Kobe University, 2.Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 3.Earthquake Research Institute, the University of Tokyo , 4.Hokkaido 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-IT Science of the Earth's Interior & Techtonophysics

[S-IT20] Deep Earth Sciences

5:15 PM - 7:15 PM

[SIT20-P09] Low seismic velocity anomaly in the lowermost mantle beneath the Western Pacific Ocean

*Hiiro Tabata¹, Hiroko Sugioka¹, Masayuki Obayashi^1,2, Takayuki Miyoshi³ (1.Kobe University, 2.JAMSTEC (Japan Agency for Marine-Earth Science and Technology), 3.NIED (National Research Institute for Earth Science and Disaster Resilience))

Wed. May 28, 2025 1:45 PM - 3:15 PM 104 (International Conference Hall, Makuhari Messe)

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

[S-VC36] Volcanoes in the sea

2:30 PM - 2:45 PM

[SVC36-04] Earthquake activity in the Torishima Rift and Sofu Seamount related to the October 2023 tsunamis observed in Japan

*Koichiro Obana¹, Aki Ito¹, Toshiya Fujiwara¹, Masayuki Obayashi¹, Kentaro Imai¹, Yasuyuki Nakamura¹, Kenta K. Yoshida¹, Noriko Tada¹, Tomoya Nakajima¹, Hiroyuki Matsumoto¹, Gou Fujie¹, Satoru Tanaka¹, Shigeaki Ono¹, Shuichi Kodaira² (1.Research Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology, 2.Japan Agency for Marine-Earth Science and Technology)

Wed. May 28, 2025 10:45 AM - 12:15 PM Convention Hall (CH-A) (International Conference Hall, Makuhari Messe)

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

[S-CG55] Ocean Floor Geoscience

10:45 AM - 11:00 AM

[SCG55-18] Magnetic anomaly on the Sofu Seamount, Izu-Ogasawara (Bonin) Arc

*Toshiya Fujiwara¹, Noriko Tada¹, Kenta K. Yoshida¹, Aki Ito¹, Kentaro Imai¹, Masayuki Obayashi¹, Koichiro Obana¹, Gou Fujie¹, Shigeaki Ono¹, Shuichi Kodaira² (1.Research Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology, 2.Japan Agency for Marine-Earth Science and Technology)

Masayuki Obayashi

Speaker, Author, Co-Author

★Invited Papers