topics: |  science | geography | humour | young-adult

Iceland - 1996, Grimsv\:otn volcano under 760 m of ice. Underneath, a
volcano melted ice at 6K tons per second, and after three weeks, this
water broke through the melted ice in a flood at 55,000
tons/sec leaving fields of house-sized icebergs on its wake to the
sea.  p.69

Volcanic Explosivity Index - VEI - 1 to 8

Toba, Sumatra, 75,000 BC - 8 - 2,800 km^3 ash spread all over the world
		and caused frozen weather for years.
Tambora Indonesia, 1815 - 7
Taupo, NZ, 130 AD?  - 7
Novarupta, Alaska, 1912 - 6 (21 km^3 ash)
Krakatoa Indonesia 1883 - 6 heard from Australia, 4,800 kmm away)