With over 1,350 active volcanoes worldwide and up to 70 eruptions occurring annually, understanding the geological machinery beneath our feet is vital to interpreting Earth’s past and future.

In this episode, host Donald Wayne Murphy sits down with Dr. Tamie J. Jovanelly—distinguished geologist, GSA Fellow, two-time Fulbright Research Scholar, and host on The Weather Channel. Dr. Jovanelly breaks down complex planetary forces into accessible insights, discussing her book Volcanoes: What Everyone Needs to Know (Oxford University Press) and her fieldwork across Iceland’s tectonic rifts.

From the historic destruction of Mount Vesuvius to the colossal threat of the Yellowstone Supervolcano, discover how magma, plate tectonics, and climate intersect—and how volcanism behaves on worlds far beyond Earth.