Supermoon, the phenomena where moon is closest to the Earth, always comes with natural disasters. Coincidence? or related? I don't know. I'm neither a geologist, astronomer, or an astrologist...
But lets talk about the disasters...
Supermoon 1938 - New England hurricane
Supermoon 1955 - Australian Hunter Valley flood
Supermoon 1974 - Tracy Cyclone
Supermoon 1992 - Hurricane Andrew
Supermoon 2005 - Hurricane Katrina, Indonesian Earthquake
Supermoon 2011 - Tsunami & earthquake in Japan, and maybe more to come
Coincidence? or not?
I don't know...