saint malachy of armagh ( 1142 ) there is a message in which it is written that the oceans will flood whole areas of the earth , and from one moment to the next millions of people will perish we must prepare ourselves to suffer great trials before long pope john paul ii , ( october , 1981 ) reader of the secret letter of fatima a robust emp laydown would shut down the us power grid and communications for at least 6 months .