Alpine tsunami are a real thing - September 1806 a landslide into Swiss Lake Lauerzer caused a wave & flood, killing 500 people http://pic.twitter.com/pSRLadQDkg
— David Bressan (@David_Bressan) October 9, 2016
via Twitter https://twitter.com/David_Bressan
October 09, 2016 at 09:10PM
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