On November 2nd, CoSV hosted the webinar entitled “August 2021 eruption of the Fukutoku Oka-na-Ba volcano, Izu-Bonin Arc: Latest results from the rapid response seafloor surveys”. This webinar was presented by Dr. Kenichiro Tani, of the Department of Geology at the National Museum of Nature and Science, Japan.
To watch the past webinar , click this link.
Abstract:
Fukutoku-Oka-no-Ba (FOB) is an active submarine volcano located in the southernmost Izu-Bonin Arc, which erupted on August 13, 2021. The eruption reached a plume altitude of 16 km at the tropopause, and satellite images showed that discolored water appeared below the sea surface at the onset of the eruption, followed by formation of pumice rafts and a new emergent island.
Following the eruption, we have conducted two rapid response research cruises in 2022. The first cruise was conducted in April, and we were successful in obtaining sediment cores at 8 sites on the western foothill of FOB. The second cruise was conducted in August, and we were able to observe the horizontal extension of eruptive materials on the distal/proximal sites using a remotely-operated vehicle. We expect to understand the detailed time sequence of the 2021 eruption and the deposition mechanisms of the ejecta beneath the sea surface. In this talk, we will introduce our latest results from these surveys.
On September 6th, 2023, 16:00 UTC, CoSV hosted the webinar entitled “Shallow subaqueous and subglacial explosive eruptions: Comparing models and case studies to explore controls on column rise and stratospheric injection”. This webinar was presented by Dr. Colin Rowell, Postdoctoral…
On September 26th, 2023, 08:00 UTC, CoSV will host the webinar entitled “Volcanic tsunamis due to trapdoor faulting in submarine calderas: Observations and physics”. This webinar will be presented by Dr. Osamu Sandanbata, Assistant Professor, Earthquake Research Institute, The University…
Welcome to Commission on Submarine Volcanism.
We have managed to arrange with the “Cities on Volcanoes 11” organisers to allow a special late abstract submission for any science regarding the 2021-2022 Hunga Tonga-Hunga Ha’apai eruption. The presentations will only be e-posters, and abstract submissions will be due…
On June 23rd at 16:00 UTC CoSV hosted its first webinar entitled “Physical-chemical perturbations and biological response over the two most recent eruptions registered in the Canary Islands: Tagoro submarine volcano (El Hierro) and Cumbre Vieja (La Palma)”. This webinar…
Registration and abstract submissions for IAVCEI’s 2023 scientific assembly in Rotorua have opened. For more details see the IAVCEI 2023 website: https://confer.eventsair.com/iavcei2023/ The deadline for abstract submissions is 2nd September 2022. There are several symposia dedicated specifically to subaqueous volcanism….
The IAVCEI Commission on Submarine Volcanism would like to invite its members to participate My deep-sea volcano. This project aims to bring submarine volcanoes into the public image and engage people across any age in thinking about this often alien…
On July 20th, 23:00 UTC CoSV hosted its second webinar entitled “A decade of multidisciplinary research on submarine volcanism at Havre Volcano, Kermadec Arc: New perspectives and where to from here?”. This webinar will mini presentations by Dr. Rebecca Carey…
On August 25th, 13:00 UTC, CoSV hosted the webinar entitled “Virtual Fieldwork on the Seafloor with the help of Robotics and 3D Visualization”. This webinar will be presented by Dr. Tom Kwasnitschka, Head of Seafloor Visualization Group, Technology and Logistics…
On November 29th, CoSV hosted the webinar entitled “Assessment of the Physical Properties of the Umbrella Clouds associated with Submarine Eruptions”. This webinar was presented by Dr. Ashok Kumar Gupta, of UCLA and Vanderbilt University, USA. We continue on our…
