long valley caldera
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‘Dormant’ California Supervolcano Packed With 1000 Cubic Kilometres Of Magma
It’s been around 100,000 years since California’s Long Valley supervolcano experienced a major eruption, but this supposedly dormant caldera has been acting a bit strangely over the past four decades. New research suggests 1000km3 of magma still exists within this supervolcano, but thankfully, a major eruption remains unlikely.