Prospects for Seismological Survey of Marine Volcanoes

Satoru Tanaka

Presentation information

[J] Oral

S (Solid Earth Sciences ) » S-VC Volcanology

[S-VC36] Volcanoes in the sea

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

convener:Yoshihiko Tamura(Research Institute for Marine Geodynamics, Japan Agency for Maine-Earth Science and Technology), Eisuke Fujita(National research Instituite for Earth science and Disaster Resilience, Volcanic research department), Fukashi Maeno(Earthquake Research Institute, University of Tokyo), Shigeaki Ono(Japan Agency for Marine-Earth Science and Technology), Chairperson:Yoshihiko Tamura(Research Institute for Marine Geodynamics, Japan Agency for Maine-Earth Science and Technology), Fukashi Maeno(Earthquake Research Institute, University of Tokyo)

2:00 PM - 2:15 PM

[SVC36-02] Prospects for Seismological Survey of Marine Volcanoes

★Invited Papers

*Satoru Tanaka¹ (1.Japan Agency for Marine-Earth Science and Technology)

Keywords:Marine volcanoes, Structural survey

The subsurface structure beneath a volcano is important information for a better understanding of the magma supply system and eruption potential. The seismic velocity structure contributes greatly to improving the accuracy of hypocenter determination for volcanic earthquakes and interpretation of seismic activity in volcanic bodies. Furthermore, the electrical conductivity structure is very effective in detecting the presence or absence of caprock that is important for understanding phreatomagmatic explosions and deep subsurface fluids. Although structural investigations have been carried out on a number of active volcanoes on land, there are not enough examples of investigations of marine volcanoes including the summit area. In this talk, I will introduce past structural surveys of marine volcanoes, mainly using seismic methods, and discuss future prospects and feasibility of such surveys for some marine volcanoes.