Kilauea is one of the world's most studied volcanoes, but its deep plumbing still holds mysteries. In this episode, we dive into a "bottoms-up" view of Hawaii’s magmatic system with Gaetano Ferrante, exploring how pressure changes in the deep mantle conduit propagate to the surface.
While volcanologists often focus on shallow, top-down triggers like summit collapses or CO2 degassing, Gaetano’s recent research suggests that the deep mantle pathway—stretching nearly 100 km down—plays a much more active role in regulating magma supply than previously thought. We break down the mechanics of mantle plumes, the transition from magmastatic to lithostatic pressure, and why the "elastic" response of volcanic pipes might explain Kilauea’s stable behavior following the massive 2018 eruption.
Inside the Episode
Show Timeline
(00:00) Hawaii: Volcanoes, Frogs, and Microclimates
(02:25) Top-Down vs Bottom-Up Eruption Dynamics
(04:20) Introducing PhD Candidate Gaetano Ferrante
(06:40) From Italy’s Vesuvius to Hawaii’s Hotspots
(09:40) Is Kilauea a Normal Volcano?
(13:30) Plumbing the 100km Deep Magma Pathway
(15:10) Mapping the Summit Magma Reservoirs
(19:00) Lessons from Top-Down Rift Processes
(23:00) CO2 and Deep Volatile Solubilities
(26:30) Magmastatic vs Lithostatic Pressure
(33:45) The 2003-2007 Surge and Conduit Elasticity
(40:45) Steady States and 2018 Eruption Feedback
(45:50) Viscoelastic Futures and Heat Transfer
(52:40) Perpendicular to the Geoid: A Science Joke
Links
Papers: Bottoms up: Coupling versus decoupling within Kı̄lauea’s magma supply system
Support: Pateron
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Whimsical Wavelengths: Deep-dive conversations where a working scientist unpacks how we know what we know, one paper, one idea, or whimsical detour at a time. Hosted by Dr. Jeffrey Zurek (P.Geo).
