Another explosive episode of Kilauea’s volcanic activity came and went Wednesday after Episode 28 of the ongoing eruption in Halemaumau Crater saw eight hours of high fountaining.

KILAUEA, Hawai'i (Island News) -- The 28th episode of Kilauea abruptly ended after hours of fountaining on Wednesday. The eruption ended at 1:20 p.m.

Essentially, gas pistoning is a shallow, degassing-driven rise and fall of a lava surface. Often these pistons occur in narrow conduits — although they can happen in larger lava lakes and even in lava channels — and in bunches, as part of a series.

With a backdrop of lava fountains rising higher than 1,000 feet, Mark Steward dropped to one knee and proposed to his girlfriend of six years, Olivia Post.