Episode

When did volcanoes start existing?

Podcast: But Why: A Podcast for Curious Kids
Published: Sep 19, 2025
Duration seconds: 1561
Processing state: not_requested
Canonical source: https://play.prx.org/listen?ge=prx_326_19fac57f-eb7d-441c-9624-f52d44a4c5ab&uf=https%3A%2F%2Fpodcasts.vpr.net%2Fbut-why
Audio: https://www.podtrac.com/pts/redirect.mp3/tracking.swap.fm/track/sblTq32fyWAjsHzze2LG/dovetail.prxu.org/_/326/19fac57f-eb7d-441c-9624-f52d44a4c5ab/ButWhy_Volcanoes_Ep272.mp3
JSON: /v1/public/podcasts/but-why-a-podcast-for-curious-kids-1011548/episodes/when-did-volcanoes-start-existing
Markdown: /podcast/but-why-a-podcast-for-curious-kids-1011548/when-did-volcanoes-start-existing.md

Actions

POST https://stenobird.com/v1/public/podcasts/but-why-a-podcast-for-curious-kids-1011548/episodes/when-did-volcanoes-start-existing/transcription-requests
Idempotently request low-priority transcript generation for this episode.
GET https://stenobird.com/podcast/but-why-a-podcast-for-curious-kids-1011548/when-did-volcanoes-start-existing.md
Read the agent-friendly Markdown representation of this episode resource.

Summary

Volcanoes have been erupting on Earth for BILLIONS of years, and they’re still creating new landscapes today! Volcanoes can seem mysterious and scary, but people all over the world have learned to live in close proximity to active volcanoes. Today we answer questions you’ve sent us about how they form, how they erupt, what magma/lava is, and how volcanologists work to predict when they might erupt. Our guest is Freysteinn Sigmundsson, a volcanologist and professor at the University of Iceland. Download our learning guides and transcript: PDF | Google Slide | Transcript