Mega earthquakes, plus huge volcanic explosions cause huge rogue waves and massive tsunamis. In Nature, these huge events happen regularly, but most people do not understand this, nor do they believe it, because it did not happen to them, and it has not happened in their lifetime. Since most modern societies think only short term and do not learn any lessons from history, geology or archeology, we are doomed to learn the hard way, through massive destruction and chaos.
via Mega Earthquakes, Volcanoes And 250 Meter – 850 Ft Tsunamis Have Happened Historically, They Will Happen Again! All Nuclear Plants Are Vulnerable To Tsunamis, Floods, Earthquakes And Volcanic Ash, Which Brings Down The Grid, Causing Meltdown, Melt Out | A Green Road Journal