Geology Bites

Author: Oliver Strimpel

What moves the continents, creates mountains, swallows up the sea floor, makes volcanoes erupt, triggers earthquakes, and imprints ancient climates into the rocks? Oliver Strimpel, a former astrophysicist and museum director asks leading researchers to divulge what they have discovered and how they did it. To learn more about the series, and see images that support the podcasts, go to geologybites.com. Instagram: @GeologyBites Bluesky: GeologyBites X: @geology_bites Email: geologybitespodcast@gmail.com
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Language: en

Genres: Earth Sciences, Science

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Michael Manga on Wet Eruptions
Episode 118
Tuesday, 20 January, 2026

Water can have a dramatic effect on the style of an eruption. In the podcast, Michael Manga explains how the most powerful eruptions, such as the 2022 Hunga Tonga eruption, occur when hot magma comes into contact with water and suddenly generates vast quantities of steam. Water dissolved in magma as it rises to the surface and depressurizes can also drive destructive volcanic eruptions. Manga also talks about water-driven volcanism on Mars and on the icy moons of Jupiter and Saturn.Manga is a Professor in the Earth and Planetary Science department of the University of California, Berkeley.