Report on Stromboli (Italy) — March 1992

Bulletin of the Global Volcanism Network, vol. 17, no. 3 (March 1992)
Managing Editor: Lindsay McClelland.

Stromboli (Italy) Less-frequent eruptive episodes

Please cite this report as:

Global Volcanism Program, 1992. Report on Stromboli (Italy). In: McClelland, L (ed.), Bulletin of the Global Volcanism Network, 17:3. Smithsonian Institution. http://dx.doi.org/10.5479/si.GVP.BGVN199203-211040.

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Stromboli

Italy

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

All times are local (unless otherwise noted)


Visitors ... in mid-March reported that activity was at a low level, with only a few eruptive episodes an hour. Despite frequent heavy rains, no dark, ash-laden phreatomagmatic eruption plumes were observed. When viewed from a ferryboat for about an hour during the morning of 18 March, the volcano erupted only once, shortly after 0730, otherwise emitting only a gas plume.

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.

Information Contacts: B. Behncke, GEOMAR, Kiel.