What I have an extremely hard time comprehending is the size of this underground void that fills and then bursts in these supervolcanic events
"According to analysis of earthquake data in 2013, the magma chamber is 80 km (50 mi) long and 20 km (12 mi) wide. It also has 4,000 km3 (960 cu mi) underground volume, of which 6–8% is filled with molten rock. This is about 2.5 times bigger than scientists had previously imagined it to be; however, scientists believe that the proportion of molten rock in the chamber is far too low to allow for another supereruption"
This reminds me of the journey to the center of the earth stories, how the hell is there a 50 mile by 12 mile mostly empty void just hanging out there however many tens/hundreds of miles below the earths surface. And under the immense pressures of those depths without collapsing into nothing