The Hotspot Beneath Hawaii Is Getting Hotter, Defying a Long-Held Geological Theory
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Hawaii's mantle hotspot is getting hotter — two heat surges may explain why some Hawaiian volcanoes grew exceptionally large, defying what geologists long assumed.
Mantle Plume TheoryHotspot VolcanismPlate TectonicsThermal Convection
Theory Briefing
- Rising mantle temperatures beneath Hawaii challenge the long-held idea that hotspots burn at a steady, predictable rate.
- Two distinct heat surges in the geological record may explain why certain Hawaiian volcanoes grew far larger than their neighbors.
- The finding suggests volcanic output is driven by temperature spikes from deep in the mantle, not a constant plume.