Preprints
https://doi.org/10.21203/rs.3.rs-2950249/v2
https://doi.org/10.21203/rs.3.rs-2950249/v2
24 Oct 2023
 | 24 Oct 2023

SEATANI: hazards from seamounts in SouthEast Asia, Taiwan, and Andaman and Nicobar Islands (eastern India)

Andrea Verolino, Su Fen Wee, Susanna F. Jenkins, Fidel Costa, and Adam D. Switzer

Abstract. Submarine volcanism makes up approximately 85 % of volcanism taking place on Earth, and its eruptions can be particularly hazardous, with the potential to cause large-scale sector collapse of the volcanic edifice, tsunamis, and ash dispersal. Recent examples include the eruptions in Japan and in the Kingdom of Tonga in 2021 and 2022 respectively, but there has been little to no study of submarine volcanoes in Southeast Asia and its surroundings. Here we provide a compilation of 466 seamounts from the region, from different published sources, through the SEATANI dataset (Southeast Asia + Taiwan + Andaman & Nicobar Islands). We use this newly compiled dataset to assess on a regional basis the seamount hazard potential and exposure potential as a springboard for future more quantitative hazard studies for the region. The hazard potential was assessed through seamount morphological/structural analyses, to determine the seamount evolution stage and, grade of maturity. The exposure potential was evaluated through two different approaches: An areal analysis of the number of assets within a 100 km radius of each seamount; and the development of a hazard-weighted seamount density map to highlight potential areas of interest for future more-in-depth studies. Our results show that there are several potentially hazardous seamounts in this region, and Taiwan had the highest hazard and exposure potential, for all assets considered, while Philippines, Indonesia and Vietnam have relatively high exposure potential for submarine communication cables and ship traffic density. The results from this work serve as a first step for southeast Asian and neighbouring countries to become more resilient against and prepared for submarine volcanic eruptions in the region.

Journal article(s) based on this preprint

05 Apr 2024
SEATANI: hazards from seamounts in Southeast Asia, Taiwan, and Andaman and Nicobar Islands (eastern India)
Andrea Verolino, Su Fen Wee, Susanna F. Jenkins, Fidel Costa, and Adam D. Switzer
Nat. Hazards Earth Syst. Sci., 24, 1203–1222, https://doi.org/10.5194/nhess-24-1203-2024,https://doi.org/10.5194/nhess-24-1203-2024, 2024
Short summary
Andrea Verolino, Su Fen Wee, Susanna F. Jenkins, Fidel Costa, and Adam D. Switzer

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2023-2153', Edgardo Cañón-Tapia, 23 Nov 2023
    • AC1: 'Reply on RC1', Andrea Verolino, 24 Nov 2023
  • RC2: 'Comment on egusphere-2023-2153', Eugenio Nicotra, 05 Dec 2023
    • AC2: 'Reply on RC2', Andrea Verolino, 08 Dec 2023

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2023-2153', Edgardo Cañón-Tapia, 23 Nov 2023
    • AC1: 'Reply on RC1', Andrea Verolino, 24 Nov 2023
  • RC2: 'Comment on egusphere-2023-2153', Eugenio Nicotra, 05 Dec 2023
    • AC2: 'Reply on RC2', Andrea Verolino, 08 Dec 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Reconsider after major revisions (further review by editor and referees) (24 Dec 2023) by Giovanni Macedonio
AR by Andrea Verolino on behalf of the Authors (15 Jan 2024)  Author's response   Author's tracked changes   Manuscript 
ED: Referee Nomination & Report Request started (24 Jan 2024) by Giovanni Macedonio
RR by Edgardo Cañón-Tapia (06 Feb 2024)
ED: Publish as is (09 Feb 2024) by Giovanni Macedonio
AR by Andrea Verolino on behalf of the Authors (15 Feb 2024)

Journal article(s) based on this preprint

05 Apr 2024
SEATANI: hazards from seamounts in Southeast Asia, Taiwan, and Andaman and Nicobar Islands (eastern India)
Andrea Verolino, Su Fen Wee, Susanna F. Jenkins, Fidel Costa, and Adam D. Switzer
Nat. Hazards Earth Syst. Sci., 24, 1203–1222, https://doi.org/10.5194/nhess-24-1203-2024,https://doi.org/10.5194/nhess-24-1203-2024, 2024
Short summary
Andrea Verolino, Su Fen Wee, Susanna F. Jenkins, Fidel Costa, and Adam D. Switzer
Andrea Verolino, Su Fen Wee, Susanna F. Jenkins, Fidel Costa, and Adam D. Switzer

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Short summary
Submarine volcanic eruptions represent the majority of eruptions taking place on Earth. Still, they are vastly understudied worldwide. Here we compile a new dataset and assess morphology, depth and height of submarine volcanoes in Southeast Asia and its surroundings to understand their hazard and exposure potential in the region. This study will serve as a stepping stone for future quantitative hazard assessments from submarine eruptions in Southeast Asia and neighbouring countries.