Articles | Volume 22, issue 10
https://doi.org/10.5194/nhess-22-3329-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-22-3329-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
14 Oct 2022
Research article |
| 14 Oct 2022
| 14 Oct 2022
Assessing minimum pyroclastic density current mass to impact critical infrastructures: example from Aso caldera (Japan)
Andrea Bevilacqua
CORRESPONDING AUTHOR
Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Pisa, Pisa, Italy
Alvaro Aravena
Laboratoire Magmas et Volcans, Université Clermont Auvergne, CNRS, IRD, OPGC, Clermont-Ferrand, France
Facultad de Ciencias Básicas, Universidad Católica del Maule, Talca, Chile
Willy Aspinall
School of Earth Sciences, University of Bristol, Bristol, United Kingdom
Antonio Costa
Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Bologna,
Bologna, Italy
Sue Mahony
School of Earth Sciences, University of Bristol, Bristol, United Kingdom
Augusto Neri
Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Pisa, Pisa, Italy
Stephen Sparks
School of Earth Sciences, University of Bristol, Bristol, United Kingdom
Brittain Hill
School of Geosciences, University of South Florida, Tampa, FL, United States
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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.
We evaluate through first-order kinetic energy models, the minimum volume and mass of a...
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