The flank eruption history of Etna (1610-2006) as a constraint on lava flow hazard

摘要: Data of the flank eruptions Etna from over last 400 years were extracted new geological map for lava flow extensions and vent positions, catalogs historical eruption durations volumes. The partially or widely hidden fields on retrieved older maps. distributions volumes analyzed, with definition six eruptive classes use in numerical simulations. threshold values set at 45 days 35 × 106 m3 100 m3, respectively. A global analysis was performed whole volcano to evaluate recurrence classes, estimate each class ranges, means standard deviations durations, elevations main vent. same repeated by subdividing into three sectors, which defined basis distribution fissures 15 ka. have different recurrences across these various volumes, Finally, a resurfacing that counts number flows given area compiled then normalized.