Please use this identifier to cite or link to this item:
|Title:||Multiphase-flow numerical modeling of the 18 May 1980 lateral blast at Mount St. Helens, USA||Authors:||Widiwijayanti, Christina.
Ongaro, T. Esposti.
Clarke, A. B.
|Keywords:||DRNTU::Science::Geology::Volcanoes and earthquakes||Issue Date:||2011||Source:||Ongaro, T. E., Widiwijayanti, C., Clarke, A. B., Voight, B., & Neri, A. (2011). Multiphase-flow numerical modeling of the 18 May 1980 lateral blast at Mount St. Helens, USA. Geology, 39(6), 535-538.||Series/Report no.:||Geology||Abstract:||Volcanic lateral blasts are among the most spectacular and devastating of natural phenomena, but their dynamics are still poorly understood. Here we investigate the best documented and most controversial blast at Mount St. Helens (Washington State, United States), on 18 May 1980. By means of three-dimensional multiphase numerical simulations we demonstrate that the blast front propagation, final runout, and damage can be explained by the emplacement of an unsteady, stratified pyroclastic density current, controlled by gravity and terrain morphology. Such an interpretation is quantitatively supported by large-scale observations at Mount St. Helens and will influence the definition and predictive mapping of hazards on blast-dangerous volcanoes worldwide.||URI:||https://hdl.handle.net/10356/95605
|DOI:||10.1130/G31865.1||Rights:||© 2012 American Geophysical Union. This paper was published in Journal of geophysical research : solid Earth and is made available as an electronic reprint (preprint) with permission of American Geophysical Union. The paper can be found at the following official OpenURL: [http://dx.doi.org/10.1029/2011JB009081]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||EOS Journal Articles|
Files in This Item:
|Multiphase flow dynamics of pyroclastic density currents.pdf||7.79 MB||Adobe PDF|
Updated on Aug 31, 2020
Updated on Nov 19, 2020
Page view(s) 50507
Updated on Nov 25, 2020
Updated on Nov 25, 2020
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.