Report on Stromboli (Italy) — 17 October-23 October 2001
Smithsonian / US Geological Survey Weekly Volcanic Activity Report, 17 October-23 October 2001
Managing Editor: Gari Mayberry
Please cite this report as:
Global Volcanism Program, 2001. Report on Stromboli (Italy). In: Mayberry, G (ed.), Weekly Volcanic Activity Report, 17 October-23 October 2001. Smithsonian Institution and US Geological Survey.
38.789°N, 15.213°E; summit elev. 924 m
All times are local (unless otherwise noted)
On 20 October at 0235 an eruption began at Stromboli. Preliminary reports stated that glowing rocks were observed being ejected from the volcano. A tourist was killed after being struck by ejecta from the eruption. Two areas of burning vegetation approximately 200 m apart were observed at 600 m elevation. Hot ejecta may have landed in these areas.
Geologic Background. Spectacular incandescent nighttime explosions at this volcano have long attracted visitors to the "Lighthouse of the Mediterranean." Stromboli, the NE-most of the Aeolian Islands, has lent its name to the frequent mild explosive activity that has characterized its eruptions throughout much of historical time. The small island is the emergent summit of a volcano that grew in two main eruptive cycles, the last of which formed the western portion of the island. The Neostromboli eruptive period took place between about 13,000 and 5,000 years ago. The active summit vents are located at the head of the Sciara del Fuoco, a prominent horseshoe-shaped scarp formed about 5,000 years ago due to a series of slope failures that extend to below sea level. The modern volcano has been constructed within this scarp, which funnels pyroclastic ejecta and lava flows to the NW. Essentially continuous mild Strombolian explosions, sometimes accompanied by lava flows, have been recorded for more than a millennium.