This 2023 satellite photo shows the heart-shaped Spirit Lake, which was transformed by the cataclysmic eruption of Mount St.

However, high level volcanic explosions do happen, as was the case with Mount Saint Helens in Washington ... On top of that, pyroclastic flows — an extremely hot and deadly current of volcanic ...

The most recent, 640,000 years ago, was a thousand times the size of the Mount St. Helens eruption in ... all the way to the Gulf of Mexico. Pyroclastic flows—dense, lethal fogs of ash, rocks ...