Please use this identifier to cite or link to this item:
Authors: Gerardi, F.* 
Barbano, M. S.* 
De Martini, P. M.* 
Pantosti, D.* 
Title: Discrimination of tsunami sources (Earthquake vs. Landslide) on the basis of historical data in Eastern Sicily and southern Calabria
Issue Date: Dec-2008
Series/Report no.: 6/98 (2008)
DOI: 10.1785/0120070192
Keywords: historical tsunamis
seismic sources
run-up distribution
Subject Classification04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology 
Abstract: The source mechanisms responsible for large historical tsunamis that have struck eastern Sicily and southern Calabria are a topic of robust debate. We have compiled a database of historical coeval descriptions of three large tsunamis: 11 January 1693, 6 February 1783, and 28 December 1908. By using accounts of run-up and inundation and employing an approach proposed by Okal and Synolakis in 2004, we can provide discriminants to define the nature of the near-field tsunami sources (fault dislocation or landslide). Historical reports for the 1908 event describe affected localities, maximum runups, and inundation areas. However, for the 1693 and 1783 tsunamis, reports are limited to inundation and occasional run-up estimates. We calculate run-up values for these events using available relations between inundation and run-up. We employed the model of Okal and Synolakis to the obtained profiles of tsunami run-up along the inundated shorelines. The 1908 run-up data distribution confirms that the tsunami is compatible with a seismic dislocation source, whereas the 1783 data supports contemporary observations and recent offshore investigations suggesting that the tsunami was produced by an earthquake-triggered submarine landslide. Analysis of the 1693 event data suggests that the tsunami was generated during a tectonic event and thus a seismogenic source should be found offshore.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
Gerardi manuscript 2007192.pdfaccepted main article2.41 MBAdobe PDFView/Open
article.pdfarticle577.33 kBAdobe PDFView/Open
Show full item record

Page view(s) 50

Last Week
Last month
checked on May 27, 2019

Download(s) 5

checked on May 27, 2019

Google ScholarTM