000009935 001__ 9935
000009935 005__ 20141205153208.0
000009935 04107 $$aeng
000009935 046__ $$k2008-10-12
000009935 100__ $$aEliasson, Jonas
000009935 24500 $$aRe-Appraisal of Tsunami Hazard in the North Atlantic Ocean: A Case Study for Iceland

000009935 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009935 260__ $$b
000009935 506__ $$arestricted
000009935 520__ $$2eng$$aIceland lies in the middle of the North Atlantic Ocean as a superstructural part of the Mid-Atlantic Ridge, the boundary between the North American and Eurasian tectonic plates. Towards the south the coast is exposed to significant tsunami hazard, according to some recent studies. The objective of the present paper is to review and reassess this potential hazard and put it into context with other earthquake-induced threats on the island. Most tsunamis are generated by shallow earthquakes in subduction zones. The only subduction zones around the northern part of the Atlantic Ocean are the Puerto Rico Trench and the Antilles Subduction Zone around the eastern Caribbean. Earthquake generated tsunamis have hit Puerto Rico and the Virgin Islands several times in recorded history, most recently in 1918. However, by far the most noteworthy Atlantic tsunami was generated by the great Lisbon earthquake of 1 November 1755, with a magnitude in the order of 9 it left Lisbon in ruins and damage was reported as far north as Ireland. According to some estimates the waves reached the south coast of Iceland. In addition, landslide and glacial flood generated tsunamis are judged to be a threat to Iceland. The tsunami hazard on the south coast of Iceland is quantified in terms of hazard curves utilising numerical modelling and computational fluid dynamics (CFD) simulations. The run-up heights are dealt with emphasising the effects of the coastal geometry and the shape of the continental shelf. Potential tsunami induced damage is addressed and the villages and coastal infrastructures under threat identified. The main finding is that the tsunami hazard in Iceland is quantified as moderate, which appears to be in line with historic recordings. Furthermore, we find that some of the recent studies may have overestimated the hazard.

000009935 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009935 653__ $$aWaves, tsunami, landslide

000009935 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009935 720__ $$aEliasson, Jonas$$iSigbjornsson, Ragnar
000009935 8560_ $$ffischerc@itam.cas.cz
000009935 8564_ $$s190928$$uhttp://invenio.itam.cas.cz/record/9935/files/15-0018.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 15-0018.
000009935 962__ $$r9324
000009935 980__ $$aPAPER