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New Scientist on MSNGiant boulder on clifftop in Tonga was carried by a 50-metre-high waveA huge tsunami hit a cliff in Tonga 7000 years ago and carried a 1200-tonne boulder 200 metres inland, making it the biggest ...
Analysis has shown a boulder weighing almost 1,200 tons in Tonga is one of the largest known wave-transported rocks in the ...
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