Articles | Volume 22, issue 10
Research article
14 Oct 2022
Research article |  | 14 Oct 2022

Assessing minimum pyroclastic density current mass to impact critical infrastructures: example from Aso caldera (Japan)

Andrea Bevilacqua, Alvaro Aravena, Willy Aspinall, Antonio Costa, Sue Mahony, Augusto Neri, Stephen Sparks, and Brittain Hill


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on nhess-2022-100', Shinji Takarada, 28 May 2022
    • AC1: 'Reply on RC1', Andrea Bevilacqua, 18 Aug 2022
  • RC2: 'Additional Comments on nhess-2022-100', Shinji Takarada, 29 May 2022
    • AC2: 'Reply on RC2', Andrea Bevilacqua, 18 Aug 2022
  • RC3: 'Comment on nhess-2022-100', Anonymous Referee #2, 05 Jul 2022
    • AC3: 'Reply on RC3', Andrea Bevilacqua, 18 Aug 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to technical corrections (15 Sep 2022) by Amy Donovan
Short summary
We evaluate through first-order kinetic energy models, the minimum volume and mass of a pyroclastic density current generated at the Aso caldera that might affect any of five distal infrastructure sites. These target sites are all located 115–145 km from the caldera, but in well-separated directions. Our constraints of volume and mass are then compared with the scale of Aso-4, the largest caldera-forming eruption of Aso.
Final-revised paper