volcano.oregonstate.edu

neOa9 TIL that in 2000 a Nasa plane accidentally flew over Mount Hekla, A.K.A the Gateway to Hell in Iceland, resulting in the first ever directly recorded plume measurements of sulfur dioxide and temperature readings taken from an actively erupting volcano.
yQJ0X TIL The Killer Lake, Lake Nyos, suddenly killed people and livestock due to the release of immense amount of carbon dioxide.
bDPp TIL the 1883 eruption on Krakatoa produced the loudest sound ever known it reverberated around the globe 7 times before diminishing. It could be heard 4,000 miles away, and people with in 100 miles had permanent hearing loss.