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Preliminary investigations of the tsunami hazard of Kick'em Jenny submarine volcano.

Smith, Martin S. and Shepherd, John B. (1993) Preliminary investigations of the tsunami hazard of Kick'em Jenny submarine volcano. Natural Hazards, 7 (3). pp. 257-277. ISSN 0921-030X

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Abstract

Kick'em Jenny is a submarine volcano situated 9 kilometres north of Grenada in the Lesser Antilles. A preliminary study suggests that the volcano is a prime candidate for tsunamigenic eruptions on a potentially hazardous scale, possibly affecting the whole of the Eastern Caribbean region. The uniqueness of individual volcanic eruptions means that attempts to generalise tsunamigenic mechanisms are extremely tentative. However, the theory of underwater explosion generated water waves is applicable to submarine volcanoes to model explosive eruptions. Using this theory, initial maximum ocean surface displacements are calculated for Kick'em Jenny hydroeruptions, corresponding to various event magnitudes (up to a lsquoworst-casersquo scenario eruption on the scale of Krakatau, 1883). Wave propagation theories are then applied to the resulting tsunami wave dispersion, before beach shoaling equations are used to estimate the maximum tsunami run-up at adjacent coastal areas. Maps of the region have been prepared showing the paths of the wave-fronts (ray-tracing), travel times and maximum wave run-up amplitudes along coastlines. Finally, an attempt is made to assess how great a hazard the volcano represents, by considering the probability of each magnitude event occurring.

Item Type: Article
Journal or Publication Title: Natural Hazards
Uncontrolled Keywords: Volcanic hazards - tsunami - tsunamigenic mechanism - submarine volcano - Lesser Antilles - hydroeruption
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 22690
Deposited By: ep_ss_importer
Deposited On: 15 Jan 2009 14:29
Refereed?: No
Published?: Published
Last Modified: 26 Jul 2012 16:04
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/22690

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