Journal
BULLETIN OF VOLCANOLOGY
Volume 71, Issue 9, Pages 1007-1019Publisher
SPRINGER
DOI: 10.1007/s00445-009-0279-5
Keywords
Stromboli; Aeolian Islands; Submarine volcanic edifice; Side scan sonar; Multibeam swath bathymetry; Mass wasting; Structural trend
Categories
Funding
- Gruppo Nazionale per la Vulcanologia
- Italian Civil Protection Department
- Istituto Nazionale di Geofisica e Vulcanologia
- UNESCO-ESF
- European Access to Sea Floor Survey Systems
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The first high-resolution bathymetric and backscatter maps of offshore Stromboli Island are presented, together with an interpretation of its volcanic, structural and sedimentary features. The volcanic edifice is characterized by a sub-conical shape with a quasi-bilateral symmetry with respect to a NE-SW axis. The dimensions of the Strombolicchio volcanic centre, to the NE of Stromboli, have been restored by redrawing its morphology before wave action that eroded it in Late Quaternary time. On the NE submarine flank of Strombolicchio, a N64A degrees E structural trend controls the shape of Strombolicchio Canyon. On the southern side of Stromboli, the submarine flank has a radial structural trend, possibly reflecting a volcanic stress regime. Landslide scars at various scales are ubiquitous on the submarine slopes of Stromboli. Repeated large-scale lateral collapses have affected both the northwestern and southeastern unbuttressed flanks of the volcano, producing large debris avalanche deposits.
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