00:00imagine a wall of water rising a thousand feet into the sky a wave so massive it could wipe out
00:05entire regions in seconds scientists say this nightmare is no longer just a theory it's a real threat to millions
00:11of americans a new study warns that a megatsunami could strike the u s and three regions are in the
00:17danger zone
00:18alaska hawaii and the entire west coast the biggest concern sits along the cascadia subduction zone a 700 mile fault
00:27stretching from california to british columbia experts say there is a 15 chance of a magnitude eight or greater quake
00:34in the next 50 years and if it hits coastal land could drop over six feet instantly opening the door
00:41for a monster wave to roar inland this kind of disaster could take centuries to recover from
00:46whole communities could be changed forever alaska faces landslides caused by melting glaciers hawaii sits on unstable volcanic ground both
00:56increasing the chance of massive ocean displacement and history shows it can happen in 1958 a landslide in latuya bay
01:03created a wave that shot wamunter 700 feet high the largest wave ever recorded and experts warn events like this
01:10are becoming more likely prepare now because when a megatsunami hits there will be no
01:16no time to escape
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