Champiagn, Ill. -- An Australian-led study has provided evidence a super-sized volcano eruption 73,000 years ago deforested much of central India.
The study led by Professor Martin Williams of the University of Adelaide shows the eruption of the volcano Toba, located on the island of Sumatra, ejected about 192 cubic miles of ash into the atmosphere, leaving a crater -- now the world's largest volcanic lake -- that's 62 miles long and 21 miles wide. Ash from the event has been found in India, the Indian Ocean, the Bay of Bengal and the South China Sea.
