The 2011 Earthquake and Tsunami that hit Japan also caused 3 nuclear meltdowns at Fukushima

This shows besides killing almost 16,000 people with almost 3000 still missing and unaccounted for it also created 3 nuclear meltdowns, the most serious of which was one of the meltdowns was reprocessing nuclear weapons grade plutonium which has a half life of 25,000 years. So, because of this nuclear radiated water from the local water table is going to be radiated and flowing into the ocean for 25,000 to 50,000 years or more at this point. Because ALL oceans are connected around land masses and through currents over time all oceans will be radiated eventually the same amount from this ongoing radiation leak for 25,000 to 50,000 years ongoing.

And all this happened from ONE Tsunami.