‚ÄėDormant‚Äô California Supervolcano Packed With 240 Cubic Miles 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 240 cubic miles of magma still exists within this supervolcano, but thankfully, a major eruption…