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GEOPHYSICAL RESEARCH LETTERS,
VOL. 28, NO. 17,
PAGES 3397–3400,
2001
Cumbre Vieja Volcano — Potential Collapse and Tsunami at La Palma, Canary Islands
Steven N. Ward
Institute of Geophysics and Planetary Physics, University of California, Santa Cruz California, USA
Simon Day
Benfield Greig Hazard Research Centre, Department of Geological Sciences, University College, London, UK
Abstract
Geological evidence suggests that during a future eruption, Cumbre Vieja Volcano on the Island of La Palma may experience
a catastrophic failure of its west flank, dropping 150 to 500 km³ of rock into the sea. Using a geologically reasonable estimate
of landslide motion, we model tsunami waves produced by such a collapse. Waves generated by the run-out of a 500 km³ (150
km³) slide block at 100 m/s could transit the entire Atlantic Basin and arrive on the coasts of the Americas with 10-25 m
(3-8 m) height.
Received 2
March
2001;
accepted 27
June
2001.
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Citation: Ward, S. N., and S. Day
(2001),
Cumbre Vieja Volcano — Potential Collapse and Tsunami at La Palma, Canary Islands,
Geophys. Res. Lett.,
28(17),
3397–3400.
Copyright 2001 by the American Geophysical Union.
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