Volcano Watch: So what on Earth (or on Kilauea) is a “gas piston”? - West Hawaii Today

Volcano Watch: So what on Earth (or on Kilauea) is a “gas piston”? - West Hawaii Today

If you’ve been following the ongoing eruption of Kilauea, you may have seen the terms “gas piston” or “gas pistoning” show up in some of the USGS Hawaiian Volcano Observatory updates, photo captions, and other places.

VOLCANO WATCH: Kīlauea "Gas Pistoning" Explained

HAWAIʻI VOLCANOES NATIONAL PARK - Gas pistoning - the shallow, degassing-driven rise and fall of a lava surface - is detailed in the latest Volcano Watch article.