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| Titel |
A revision of the 1783-1784 Calabrian (southern Italy) tsunamis |
| VerfasserIn |
L. Graziani, A. Maramai, S. Tinti |
| 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 ; 6, no. 6 ; Nr. 6, no. 6 (2006-12-13), S.1053-1060 |
| Datensatznummer |
250003815
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| Publikation (Nr.) |
 copernicus.org/nhess-6-1053-2006.pdf |
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| Zusammenfassung |
| Southern Italy is one of the most tsunamigenic areas in the Mediterranean
basin, having experienced during centuries a large number of tsunamis, some
of which very destructive. In particular, the most exposed zone here is the
Messina Straits separating the coasts of Calabria and Sicily that was the
theatre of the strongest Italian events. In 1783–1785 Calabria was shaken by
the most violent and persistent seismic crisis occurred in the last 2000
years. Five very strong earthquakes, followed by tsunamis, occurred in a
short interval of time (February–March 1783), causing destruction and a lot
of victims in a vast region embracing the whole southern Calabria and the
Messina area, Sicily. In this study we re-examined these events by taking
into account all available historical sources. In particular, we focussed on
the 5 and 6 February 1783 tsunamis, that were the most
destructive. As regards the 5 February event, we found that it was
underestimated and erroneously considered a minor event. On the contrary,
the analysis of the sources revealed that in some localities the tsunami
effects were quite strong. The 6 February tsunami, the strongest one
of the sequence, was due to a huge earthquake-induced rockfall and killed
more than 1500 people in the Calabrian village of Scilla. For this event the
inundated area and the runup values distribution were estimated.
Further, the analysis of the historical sources allowed us to find three new
tsunamis that passed previously unnoticed and that occurred during this
seismic period. The first one occurred a few hours before the large
earthquake of 5 February 1783. The second was generated by a
rockfall on 24 March 1783. Finally, the third occurred on 9 January
1784, probably due to a submarine earthquake. |
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