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Fig. 13 | Journal of Applied Volcanology

Fig. 13

From: Effects of eruption source parameter variation and meteorological dataset on tephra fallout hazard assessment: example from Vesuvius (Italy)

Fig. 13

Effect of the terminal settling velocity on the hazard maps (1000 kg/m2). Contour lines represent different probabilities of loading greater than the threshold 1000 kg/m2. Input parameters as for Fig. 11. Maximum extension is obtained for particles with settling velocity of 10 m/s (886 km2). In the background are reported the “Red Zone” (hazard from pyroclastic flows and lahars) and the “Yellow Zone” (hazard from ash fallout) of the actual Emergency Plan of Vesuvius (DPC 2015; Regione Campania 2015)

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