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| Titel |
An integrated approach to the study of catastrophic debris-flows: geological hazard and human influence |
| VerfasserIn |
C. Ventisette, F. Garfagnoli, A. Ciampalini, A. Battistini, G. Gigli, S. Moretti, N. Casagli |
| 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 ; 12, no. 9 ; Nr. 12, no. 9 (2012-09-14), S.2907-2922 |
| Datensatznummer |
250011101
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| Publikation (Nr.) |
 copernicus.org/nhess-12-2907-2012.pdf |
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| Zusammenfassung |
On 1 October 2009, a prolonged and intense rainstorm triggered
hundreds of landslides (predominantly debris flows) in an area of about 50 km2 in the north-eastern sector of Sicily (Italy). Debris flows swept
the highest parts of many villages and passed over the SS114 state highway
and the Messina-Catania railway, causing more than 30 fatalities.
This region has a high relief, due to recent uplift. The peculiar geological
and geomorphological framework represents one of the most common
predisposing causes of rainstorm-triggered debris flows. This paper deals
with the geological and hydro-geomorphological studies performed as a part
of the post-disaster activities operated in collaboration with Civil
Protection Authority, with the aim at examining landslides effects and
mechanisms. The data were elaborated into a GIS platform, to evaluate the
influence of urbanisation on the drainage pattern, and were correlated with
the lithological and structural framework of the area.
Our study points at the evaluation of the volume involved, the detection of
triggering mechanisms and the precise reconstruction of the influence of
urbanisation as fundamental tools for understanding the dynamics of
catastrophic landslides. This kind of analysis, including all the desirable
approaches for the correct management of debris flow should be the starting
point for robust urban planning. |
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