 Nyorai kupfuurira kweiyi ndima - Maererano neVolcanic Explosivity Index, VEI ye6 kusvika ku8 inorondedzerwa seultra-Plinian. Kuputika kworudzi urwu kunotsanangurwa nemapopoma etsvina ari pamusoro soro uye nehuwandu hwezvinhu zvakaputika kusvika pakukura. Kuputika kwemvura muchikamu chePlinian kunosanganisira kuputika kweLav Creek kweYellowstone Caldera c. Makore 640,000 apfuura, VEI 8, Lake Toba c. Makore 74 000 akapfuura, VEI 8, Tambora 1815, VEI 7, Krakatoa1883, VEI 6, kuputika kweAkahoya kweKikai Caldera, Japan VEI 7 uye kuputika kwa1991 kweGomo rePinatubo muPhilippines VEI 6. 