Lyell Collection
Geological Society, London, Special Publications
Lyell Centre  |   Lyell Collection  |   Subscriptions   |   Geological Society  |   Email alerts  |   Online bookshop  |   Help

Keywords:
Author:
Advanced search>>
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow Request Permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by de Alteriis, G.
Right arrow Articles by Violante, C.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation
Geological Society, London, Special Publications; 2009; v. 322; p. 73-104;
DOI: 10.1144/SP322.3
© 2009 Geological Society of London

Articles

Catastrophic landslides off Ischia volcanic island (Italy) during prehistory

G. de Alteriis1,2,* & C. Violante1

1 IAMC-CNR Institute for Coastal Marine Environments, National Research Council, Calata Porta di Massa, 80133 Napoli, Italy
2 GeoLab-Marine Surveys srl, Via Monteruscello 75, 80078, Pozzuoli, Napoli, Italy

* Corresponding author (e-mail: giovanni.dealteriis{at}geolab.it)

Generally the evaluation of the geological hazards from active volcanoes chiefly concerns the prediction of eruptions whereas less attention is generally paid to other volcanic-related phenomena, such as avalanching–landsliding. This is the case for Ischia (Italy), an active volcanic complex, whose collapse behaviour is only now being evaluated and recognized following extensive marine geophysical and geological investigations. The island of Ischia represents the emerged section of a larger east–west-trending volcanic ridge. The central sector of the island, Mt. Epomeo, has risen to at least 800 m above sea level (a.s.l.) in the past c. 30 ka, at an average rate of 20 mm a–1. The major consequence of such volcano-tectonic uplift includes either sudden collapses, with attendant debris avalanches, or other mass movements in the form of mud-debris flows, debris slides and rock-falls, all radiating out from Mt. Epomeo and most of them entering the sea. During prehistoric times the island of Ischia underwent major catastrophic collapses resulting in debris avalanche deposits of >1 km3 to <0.5 km3 that have been recognized offshore both NW and south of the island. This study provides possible scenarios for the emplacement of these deposits, with particular reference to the resulting landslide-related tsunami hazard.





This article has been cited by other articles:


Home page
 Geological Society, London, Special PublicationsHome page
C. Violante
Rocky coast: geological constraints for hazard assessment
Geological Society, London, Special Publications, 2009; 322: 1 - 31.
[Abstract] [Full Text] [PDF]

Home page
 Geological Society, London, Special PublicationsHome page
A. Milia, A. Raspini, and M. M. Torrente
Evidence of slope instabilities and tsunami associated with the 3.5 ka Avellino eruption of Somma-Vesuvius volcano, Italy
Geological Society, London, Special Publications, 2009; 322: 105 - 119.
[Abstract] [Full Text] [PDF]