Kammala wannan jumla: Tsayin da aka kiyasta na Dutsen Samalas kafin a haife shi
1257 fashewa ya kasance. Dangane da binciken na 2013, fashewar ta lalata dutsen ta hanyar fitar da kusan nauyin dutse mai yawa ko dutse a cikin yanayi. Fashewar ta kasance daya daga cikin mafi girma a cikin 'yan shekaru dubu da suka gabata, tare da yiwuwar Index na Fashewar Volcanic na 7. Fashewar na iya zama sanadin raguwar yanayin duniya na fewan shekaru kuma yana iya zama maɓallin haifar da Little Ice Age.