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| Titel |
Tephra hazard assessment at Mt. Etna (Italy) |
| VerfasserIn |
S. Scollo, M. Coltelli, C. Bonadonna, P. Carlo |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 13, no. 12 ; Nr. 13, no. 12 (2013-12-12), S.3221-3233 |
| Datensatznummer |
250085581
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| Publikation (Nr.) |
 copernicus.org/nhess-13-3221-2013.pdf |
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| Zusammenfassung |
| In this paper we present a probabilistic hazard assessment for tephra fallout
at Mt. Etna (Italy) associated with both short- and long-lived eruptions.
Eruptive scenarios and eruption source parameters were defined based on the
geological record, while an advection–diffusion–sedimentation model was
used to capture the variation in wind speed and direction with time after
calibration with the field data. Two different types of eruptions were
considered in our analysis: eruptions associated with strong short-lived
plumes and eruptions associated with weak long-lived plumes. Our
probabilistic approach was based on one eruption scenario for both types and
on an eruption range scenario for eruptions producing weak long-lived plumes.
Due to the prevailing wind direction, the eastern flanks are the most
affected by tephra deposition, with the 122 BC Plinian and 2002–2003
eruptions showing the highest impact both on infrastructures and agriculture. |
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