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A new insight into secondary volcanic hazards at Stromboli: the case of Gravity Induced Flows of 3rd July 2019 paroxysm by high resolution topographies from satellite data

Roberto Gianardi 1,2, Marina Bisson1, Claudia Spinetti3, Mattia De' Michieli Vitturi1, Monica Palaseanu-Lovejoy4

  • Affiliations: 1 Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italy; 2 Dipartimento di Scienze della Terra, Università di Pisa, Pisa, Italy; 3 Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma 1, Roma, Italy; 4 U.S. Geological Survey, Geology, Minerals, Energy and Geophysics Science Center, Reston, USA

  • Presentation type: Poster

  • Presentation time: Tuesday 16:30 - 18:30, Room Poster Hall

  • Poster Board Number: 59

  • Programme No: 6.3.18

  • Theme 6 > Session 3

Abstract

Among the secondary hazards generated by eruptive events, gravity-induced flows (GIF) are particularly significant due to their rapid onset and destructive potential. Such phenomena, were observed during the 3rd July 2019 paroxysm at Stromboli Island (Aeolian archipelago, Italy). One of the two GIF affected the island western flank involving the summit hiking path. To reproduce such flow, a new procedure that generates Digital Surface Model by using NASA's Ames Stereo Pipeline platform and models the flow dynamics was developed.  First results were obtained by using numerical codes based on rheology models that allow to represent the flow behavior. Here this approach provides new insights into the volcanic hazard assessment.