The Toba eruption or Toba event occurred at the present location of Lake Toba, in Indonesia, about Before Present (BP) according to potassium argon dating [REF].[REF]
The erupted mass was 100 times greater than that of the largest volcanic eruption in recent history, the 1815 eruption of Mount Tambora in Indonesia, which caused the 1816 "Year Without a Summer" in the Northern Hemisphere [REF].