Report on Stromboli (Italy) — 10 March-16 March 2010

Smithsonian / US Geological Survey Weekly Volcanic Activity Report, 10 March-16 March 2010
Managing Editor: Sally Kuhn Sennert

Please cite this report as:

Global Volcanism Program, 2010. Report on Stromboli (Italy). In: Sennert, S K (ed.), Weekly Volcanic Activity Report, 10 March-16 March 2010. Smithsonian Institution and US Geological Survey.

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Stromboli

Italy

38.789°N, 15.213°E; summit elev. 924 m

All times are local (unless otherwise noted)


INGV-CT reported strong explosions from Stromboli on 10 March mainly from craters located in the N part of the crater terrace, a flat area in the upper part of Sciara del Fuoco (a depression cutting the NW flank of the volcano). After one of the more powerful explosions, lava flowed over the NW edge of the crater terrace for tens of meters before fragmenting and producing small landslides of hot material that likely reached the sea.

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, 924-m-high 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 from about 13,000 to 5000 years ago was followed by formation of the modern Stromboli edifice. The active summit vents are located at the head of the Sciara del Fuoco, a prominent horseshoe-shaped scarp formed about 5000 years ago as a result of the most recent of 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.

Source: Sezione di Catania - Osservatorio Etneo (INGV)