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| Titel |
Brief Communication: The effect of submerged vents on probabilistic hazard assessment for tephra fallout |
| VerfasserIn |
R. Tonini, L. Sandri, A. Costa, J. Selva |
| 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 Sciences ; 15, no. 3 ; Nr. 15, no. 3 (2015-03-04), S.409-415 |
| Datensatznummer |
250119361
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| Publikation (Nr.) |
 copernicus.org/nhess-15-409-2015.pdf |
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| Zusammenfassung |
| Many volcanic systems are partially or entirely submerged, implying that
vents may open underwater. The effect of submerged vents on probabilistic
volcanic hazard assessment (PVHA) for tephra fallout has always been
neglected, introducing potentially uncontrolled biases. We present a strategy
to quantify the effect of submerged vents on PVHA for tephra fallout, based
on a simplified empirical model in which the efficiency of tephra production
decreases as a function of the water depth above the eruptive vent. The
method is then applied to Campi Flegrei caldera, comparing its results to
those of two reference end-member models and their statistical mixing. |
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