<prompt> Qedela umusho olandelayo: Isilinganiso sokuphakama kweNtaba i-Samalas ngaphambi kokuwa kwayo  <response>: Ukuqhuma kuka-1257 kwakunjalo. Ngokocwaningo lwango-2013, ukuqhuma kwabhubhisa intaba ngokukhishwa kwamatshe afinyelela ku-75 kg noma afinyelela ku-75 kg emkhathini. Lokhu kuqhuma kwakungokunye kokukhulu kakhulu phakathi neminyaka eyizinkulungwane ezimbalwa edlule, cishe i - Volcanic Explosivity Index ingu - 7. Kungenzeka ukuthi ukuqhuma kwabangela ukwehla kwamazinga okushisa emhlabeni wonke iminyaka embalwa futhi kungenzeka ukuthi kwabangela neNkathi Yeqhwa Encane. 