Coastal boulders as evidences of high-energy marine events from Diu Island, west coast of India: storm or palaeotsunami?

S. Prizomwala (), Drasti Gandhi, Vishal Ukey, Nilesh Bhatt and B. Rastogi

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2015, vol. 75, issue 2, 1187-1203

Abstract: The coastal segment of Diu Island from west coast of India has been studied for its boulder deposits. The dimensions, morphology and characteristics of these boulders were studied to elucidate the type of wave responsible for their detachment from jointed shore platform and transport them to their present final position. The generated data were compared with wave height decay curves of strongest storm that has hit the Gujarat coastline (May 2001 storm). It was concluded that even the strongest storm ever recorded in Arabian Sea (Gonu 2007) cannot detach and initiate the transport of these boulders to their final position. However, a tsunami wave of 3.5-m wave height can easily detach and mobilize these boulders to their final position. On the basis of imbrication direction, we postulate that the direction of source of tsunami wave is southwesterly. Owing to the strike-slip nature of Owen Fracture Zone and earlier documented large landslides along the Southern Owen Ridge, we postulate the most likely source of this tsunami wave could be a mega submarine landslide along the Southern Owen Ridge. Copyright Springer Science+Business Media Dordrecht 2015

Keywords: Palaeotsunami; Boulder deposits; Storm; Southern Owen Ridge; Diu Island (search for similar items in EconPapers)
Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://hdl.handle.net/10.1007/s11069-014-1371-5 (text/html)
Access to full text is restricted to subscribers.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:nathaz:v:75:y:2015:i:2:p:1187-1203

Ordering information: This journal article can be ordered from
http://www.springer.com/economics/journal/11069

DOI: 10.1007/s11069-014-1371-5

Access Statistics for this article

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards is currently edited by Thomas Glade, Tad S. Murty and Vladimír Schenk

More articles in Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards from Springer, International Society for the Prevention and Mitigation of Natural Hazards
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().