#Big Island Volcano Blog

The latest episode in the series that began nearly a year ago on Dec. 23, 2024, ended abruptly at 8:52 p.m. Saturday (Dec. 6), after a little more than 12 hours, when the south vent — which exploded earlier during the day and featured sustained fountaining as high as 1,200 feet at one point — ceased activity.

Lava jettisoned to heights of more than 650 feet at times during the 10 hours of Episode 18 high fountaining before the most recent phase of the Big Island volcano’s summit eruption ended the afternoon of April 22.

Wondering about that dusting of glittery threads on your property? Pele’s hair is the name for the strands of volcanic glass that are created when globs of liquid lava are stretched apart during an eruption.

Ongoing episodic eruption within summit caldera of Big Island’s Kīlauea volcano that began Dec. 23, 2024, started its fifth eruptive event at about 3 p.m. Wednesday, Jan. 21, after about 4 days on pause.

Hawaiian Volcano Observatory reports that If that relatively high rate of inflation being recorded by instruments at the summit now continues and magma remains high in the vent — as indicated by peristent strong glow at night — there is a high probability a fifth fountaining episode could begin sometime between Jan. 21 and Jan. 24.

When magma cools prior to eruption, crystals grow and develop chemical zones that record changes in the environment around them. Scientists study chemical differences in these zones, which can provide information about the magma, including its temperature, composition and more.