"An effusive eruption is a volcanic eruption during which lava flows onto the ground." . _:b670468388 . _:b670485677 . "effusive eruption"@en . _:b670485676 . _:b670468389 . _:b670485676 . _:b670468389 . _:b670485677 . "environmental_hazards" . _:b670485676 . . _:b670485676 . _:b670468388 . _:b670468389 . _:b670485677 . _:b670468389 . _:b670468389 . . _:b670485676 . _:b670468388 . _:b670468388 . _:b670485677 . _:b670468388 . _:b670485677 . .