thumb|353x353px|Maunaulu erupting in 1974
thumb|350x350px|Cutaway view of Kilauea's eastern rift zone. Maunaulu can be seen to the right of Kilauea Caldera.
Maunaulu, also known as Mauna Ulu, is a volcanic cone in the eastern rift zone of the Kīlauea volcano on the island of Hawaiʻi. It falls within the bounds of Hawaiʻi Volcanoes National Park. Maunaulu was in a state of eruption from May 1969 to July 1974.
Name
The name Maunaulu means "growing mountain". The U.S. Board on Geographic Names updated the spelling of the feature from Mauna Ulu to Maunaulu in 2015.
Eruption
thumb|left|Toadstool-shaped formations dot the desolate landscape of Maunaulu.
The eruption that formed Maunaulu began on May 24, 1969 and continued until July 22, 1974. At the time, this was the longest-lasting and most voluminous eruption on Kīlauea's flank in at least 2,200 years, lasting 1,774 days and producing 350 million cubic meters of lava.
References
__FORCETOC__