Please use this identifier to cite or link to this item:
Authors: Walter, T. R.* 
Acocella, V.* 
Neri, M.* 
Amelung, F.* 
Title: Feedback processes between magmatic events and flank movement at Mount Etna (Italy) during the 2002-2003 eruption
Series/Report no.: B10205/110(2005)
Publisher: AGU
Issue Date: 27-Oct-2005
DOI: 10.1029/2005JB003688
Keywords: Mount Etna
flank instability
volcano deformation
volcano-tectonic interaction
elastic stress field modeling
Subject Classification04. Solid Earth::04.08. Volcanology::04.08.03. Magmas 
04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring 
04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risk 
Abstract: The 2002–2003 Mount Etna eruption and the associated deformation provide a unique possibility to study the relationships between volcanism and volcano instability. The sequence started with movement of the eastern volcano flank and was associated with earthquakes and the formation of surface ruptures. Then the eruption occurred from fissures at the north and south rift zones and was followed by additional flank movement, seismic swarms, and surface ruptures. The overall area of flank movement implicated more than 700 km2. In this paper we investigate how episodes of magmatic events (eruptions and intrusions) and flank movement interact. In three-dimensional numerical models we simulate the volcano-tectonic events and calculate changes in the static stress field. The models suggest that the 2002–2003 events are the result of interrelated processes consisting of (1) the preeruptive intrusion of magma and inflation of the volcano, which induced (2) the movement of the volcano east flank, (3) facilitated the eruption, and (4) led to the slip of a much larger part of the eastern and southeastern flanks. Understanding the precise interconnectivity of these processes may help to forecast the behavior during future volcanic crisis at Mount Etna, which is crucial in minimizing volcanic and seismic hazards on the highly populated eastern sector of the volcano.
Appears in Collections:Article published / in press

Files in This Item:
File Description SizeFormat Existing users please Login
Walter et al.pdf2.21 MBAdobe PDF
AGU.html490 BHTMLView/Open
Show full item record

Citations 50

Last Week
Last month
checked on Feb 10, 2021

Page view(s)

Last Week
Last month
checked on Jan 20, 2022


checked on Jan 20, 2022

Google ScholarTM