Mount St. Helens was an active stratovolcano located in the state of Washington. It was known for its famous eruption in 1980 and it last erupted in 2008. It had a height of 2550 meters.
During the 2012 apocalypse, Mount St Helens entered into a huge eruption which destroyed the entire state of Washington and spreading volcanic ash everywhere. Lava and pyroclastic flows were released from the volcano, killing millions of people, Due to the Earth's crust becoming unstable and lava forcing its way to the surface due to the Earth's core's temperature being so high. When the Worldwide Flooding occurred, a gigantic tsunami at the height of 1500 meters swept away the volcano, submerging it underwater and becoming dormant again like the other volcanoes globally.