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Instability of coral limestone cliffs due to extreme waves
Author(s) -
Kogure Tetsuya,
Matsukura Yukinori
Publication year - 2010
Publication title -
earth surface processes and landforms
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.294
H-Index - 127
eISSN - 1096-9837
pISSN - 0197-9337
DOI - 10.1002/esp.2046
Subject(s) - cliff , coral , geology , instability , seismology , rogue wave , oceanography , geomorphology , paleontology , mechanics , physics , nonlinear system , quantum mechanics
Abstract Many boulders are located around the coastal cliffs with height of below 5 m made of coral limestone at Kuro‐shima, Okinawa, Japan. The origin of the boulders appears to be coral limestone cliffs which show developed notches. We undertook stability analysis, involving the wave pressure due to tsunamis, of wave‐induced collapse of the cliffs. We find that extreme waves are capable of inducing cliff collapse, as observed in circumstances where gravity is insufficient. Copyright © 2010 John Wiley and Sons, Ltd.