JAPANS devastating earthquake comes just days after a warning that an extreme 'supermoon would spark chaos across the globe. On March 19, the moon will loom large in our skies and be at its closest distance from the Earth in 18 years. And weather bloggers noted there was a supermoon just before the last monster tsunami in Asia on Boxing Day 2004. Conspiracy theorists on the internet have made catastrophic predictions of tidal waves, volcanic eruptions and earthquakes. Next week the moon will pass a mere 221,567 miles from our planet and some amateur scientists have been predicting extreme conditions all over the world. The event - known as a lunar perigee - happens when a full or new moon comes within 90 per cent of its closest approach possible. Those that come nearest to Earth are called extreme supermoons, just like the one expected next week. Blogger Daniel Vogler wrote on weather website AccuWeather: The last extreme supermoon occurred was on January 10th, 2005, right around the time of the 9.0 Indonesia earthquake. That extreme supermoon was a new moon. So be forewarned. Something BIG could happen on or around this date. Previous supermoons took place in 1955, 1974, 1992 and 2005 - all years that had extreme weather events. The tsunami that killed hundreds of thousands of people in Indonesia happened two weeks before the January 2005 supermoon. And on Christmas Day 1974, Cyclone Tracy laid waste to Darwin, Australia. The Sun