#when have they formed

Volcano Watch: When have lava fountains formed on Kīlauea and what are their hazards?

Several past eruptions of the Big Island volcano were characterized by similar lava fountaining episodes, including at the start of the Puʻuʻōʻō eruption in 1983, the start of the Maunaulu eruption in 1969 and the 1959 Kīlauea Iki eruption.