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dc.contributor.authorMurthy, K.S.R.
dc.contributor.authorSubrahmanyam, A.S.
dc.contributor.authorMurty, G.P.S.
dc.contributor.authorSarma, K.V.L.N.S.
dc.contributor.authorSubrahmanyam, V.
dc.contributor.authorRao, K.M.
dc.contributor.authorRani, P.S.
dc.contributor.authorAnuradha, A.
dc.contributor.authorAdilakshmi, B.
dc.contributor.authorDevi, T.S.
dc.date.accessioned2006-06-15T07:33:59Z
dc.date.available2006-06-15T07:33:59Z
dc.date.issued2006
dc.identifier.citationCurrent Science, Vol. 90(11),1535-1538
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/118
dc.description.abstractThe Tamil Nadu margin, in particular the Nagapattinam–Cuddalore shelf was the worst affected by the tsunami surge and inundation caused by the great Sumatra earthquake of 26 December 2004 (Mw 9.3). Surge heights in this part were of the order of 2 to 5 m, with inundation of the order of few hundred metres into the interior coast, thus causing huge loss of human life and property. Several reasons were attributed to the unusual surge in this part of the Tamil Nadu margin, the main reason being its relative proximity to the origin of the event, apart from the concave nature of the shelf with a gentle gradient. A detailed analysis of geophysical data of the Nagapattinam–Cuddalore shelf is presented. The results indicate that the structure of the underlying basement, the morphology and the land–ocean tectonics are the main guiding factors for the run-up heights in case of the Nagapattinam–Cuddalore shelf. The faultcontrolled basement structure, and a straight coastline with narrow and gentle shelf have helped in rapid transgression of the surge inundating the coastal area.
dc.format.extent245760 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherIndian Academy of Sciences
dc.subjectBasement structure
dc.subjectCuddalore–Nagapattinam
dc.subjecttsunami surge
dc.subjectshelf morphology
dc.titleFactors guiding tsunami surge at the Nagapattinam–Cuddalore shelf, Tamil Nadu, east coast of India
dc.typeJournal Article


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