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A FIRST ATTEMPT BY THEMATIC MAPPING TO ASSESS THE HAZARD AND RISK
OF LAVA FLOW INVASION IN THE EASTERN FLANK OF MT. ETNA VOLCANO (SICILY, ITALY)
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A FIRST ATTEMPT BY THEMATIC MAPPING TO ASSESS THE HAZARD AND RISK
OF LAVA FLOW INVASION IN THE EASTERN FLANK OF MT. ETNA VOLCANO (SICILY, ITALY)
R. Ieni, R. Rasa, R. Tripodo (Dipartimento di Fisica della Materia, Universit di Messina, Salita Sperone,31, 98166 Messina - Italy)
L . Villari (Gruppo Nazionale per la Vulcanologia, Via Nizza,128, 00198 Roma - Italy)
Hazard assessment and risk evaluation of lava flow invasion on the highly urbanised, low-eastern slopes of Mt. Etna have been preliminary approached by cartographic methods aiming at producing data which can be used for assessing the sustainable urban development in this sector of the volcano and civil protection purposes. A lava invasion frequency map has been realized by interpolating a complete catalogue of 33 revised lava flows under 1000 m. asl maps starting from 1228 as well as a land use map of the same area by satellite imageries including the main lifelines. The initial results revealed that the cross-correlation of these maps emphasises that shape and location of the maximum invasion zone mimic the most urbanised area. This leads to a preliminary, albeit crude, assessment of the very high level of volcanic risk in the event of an eruption accompanied by lava flowing downward in the eastern flank of this very active basaltic volcano.
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