HR: 1330h
AN: V23A-09    [Abstracts]
TI: Interdisciplinary study on the effects of explosive eruptions of Somma-Vesuvius on people, animals and human settlements: a tool for risk assessment.
AU: * mastrolorenzo, g
EM: mastro@ov.ingv.it
AF: osservatorio vesuviano, via diocleziano, naples, ita
AU: petrone, p
EM: pipetron@unina.it
AF: university of naples federico II, via mezzocannone 8, naples, ita
AU: pappalardo, l
EM: lucy@ov.ingv.it
AF: osservatorio vesuviano, via diocleziano, naples, ita
AB: An interdisciplinary study of structures and human and animal victims of the Somma-Vesuvius explosive eruptions, dated from prehistory to modern age and based on the analysis of bioanthropological and geoarchaeological features, provides new results on the mechanical and thermal effects of the pyroclastic density currents (PDCs) and fallout. These studies allow us to define the dynamical overpressure associated with pyroclastic currents and to discriminate the role of mechanical impact, suffocation and thermal shock in causing death. Evidence of dynamical overpressure in the order of some tens of kPa have been recognized within a range of 10 km from the vent. Critical tephra accumulation above the roof collapse limit have been detected in archaeological sites NE to SE of the volcano, up to a distance of about 40 km. Evidence of effects induced by secondary pyroclastic density currents (lahars, flows, debris-flows) have been ricognized in all directions up to ca 50 km from the vent. Possible condition for lethalities due to suffucation have been assessed up to a distance of ca 25 km from the volcano. Our results provide new elements for emergency plans at Vesuvius.
DE: 5480 Volcanism (8450)
SC: Volcanology, Geochemistry, Petrology [V]
MN: 2005 Joint Assembly