The film details the scientific observations made during the eruption, which lasted for five years and dramatically altered the Hawaiian landscape, creating the new mountain Mauna Ulu. Scientists ...

Lava falls 25 m into 'Ālo'i Crater, fed by a 225-m-high fountain at Mauna Ulu, 600 m distant. Photo taken 30 Dec. 1969 by Don Swanson. The crater was later filled by lava and is no longer visible.