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Published online 12 May 2005 | Nature | doi:10.1038/news050509-12
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Cliff quivers warn of collapse
Seaside cliffs may shake before they fall, giving hours of notice.
Tiny tremors can signal a collapsing cliff at least two hours before the rocks start to tumble, according to a team of French researchers.
The team spotted seismic signals in one seaside cliff before it collapsed, and say the same technique should work on other unstable pieces of land.
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