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The shallow plumbing system of Stromboli Island as imaged from 1 Hz instantaneous GPS positions
Author(s) -
Mattia Mario,
Rossi Massimo,
Guglielmino Francesco,
Aloisi Marco,
Bock Yehuda
Publication year - 2004
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2004gl021281
Subject(s) - geology , volcano , seismology , impact crater , strombolian eruption , landslide , magma , geodetic datum , global positioning system , lava , geodesy , geomorphology , telecommunications , physics , astronomy , computer science
The Stromboli volcano (Aeolian Islands, Italy) erupted suddenly on 28 December 2002 after a 17‐year period of typically persistent but moderate eruptive activity, followed two days later by a tsunamigenic landslide on its NW flank (Sciara del Fuoco) felt in the coastal areas of southern Italy. Three continuous GPS stations were quickly deployed near the volcano's rim sampling at 1 Hz, with instantaneous positions computed relative to a fourth station on its flank. We report on two deformation episodes. A vent migration on 16–17 February 2003 caused significant displacements at only one site and contributed to the decision not to issue a warning of an impending tsunamigenic landslide. The second episode on 5 April 2003, a paroxystic explosion from the summit crater, allowed us to model, for the first time with geodetic data, the shallow magma chambers that give rise to Strombolian explosive activity.

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