eruptive

adjectives

producing or characterized by eruptions
"an eruptive disease"
pertains to
produced by the action of fire or intense heat
"rocks formed by igneous agents"
actively spewing out lava
"a geyser is an intermittently eruptive hot spring"
is derived from
is similar to
(of e.g. volcanos) erupting or liable to erupt
"active volcanos"