Project pages
A
study of tsunami risk in the main ocean basins was undertaken jointly with
Coventry University and funded through the TSUNAMI initiative by the UK
Government and a consortium of insurance and reinsurance companies. The
products of the study include a risk atlas, an assessment of the tsunami
generated by the 1964 Alaska earthquake, and a more thorough examination
of the tsunami threat in the North Atlantic.
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Giant landslides at volcanic ocean islands and the mega-tsunami threat
in the Atlantic Ocean
Lateral collapses of ocean island volcanoes and the consequent enormous
tsunamis rank amongst the most catastrophic geophysical events of terrestrial
origin. Over 100 giant landslides have now been identified on the ocean
floor particularly around the Hawaiian Islands and the Canaries. Runout
distances are up to 200km, with volumes in excess of 1000 km3, and emplacement
velocities are likely to be of the order of 300 km per hour. Research
into these giant events, their causes, and how they can be predicted has
formed a focus of activity by BHRC researchers since 1994. More recently
the threat has captured the imagination of the media and the public following
broadcasting of the BBC Horizon television programme MEGATSUNAMI on 16th
October 2000.
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