Speaking of volcanoes, if the super volcano in Yellowstone National Park decides to blow big time, then the effects would be similar to a large asteriod impact. Then there is 'the ring of fire'....
There is a large asteriod that will either pass very close to Earth or hit it around 2010 to 2015. If it comes very close, then the same asteriod will probably impact in 2030. It comes from the resonance emmited by Jupiter and Earth; in other words the gravity field.
19/07/2008
Melbourne, Victoria