Report on Stromboli (Italy) — 28 February-6 March 2007
Smithsonian / US Geological Survey Weekly Volcanic Activity Report, 28 February-6 March 2007
Managing Editor: Sally Kuhn Sennert
Please cite this report as:
Global Volcanism Program, 2007. Report on Stromboli (Italy). In: Sennert, S K (ed.), Weekly Volcanic Activity Report, 28 February-6 March 2007. Smithsonian Institution and US Geological Survey.
38.789°N, 15.213°E; summit elev. 924 m
All times are local (unless otherwise noted)
INGV-CT reported that the eruption at Stromboli that started on 27 February continued during 7 March. Lava from a fissure on the NE flank of Crater 1 (the NE crater) flowed down the Sciara del Fuoco and formed two branches that reached the sea, resulting in steam plumes and a modified coastline. Explosive activity from the summit craters ceased when the lava flowed from the fissure, but gas puffing accompanied by small landslides inside the craters started again after 3 March.
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.