On May 18, 1980, the eruption of Mount St. Helens emitted 1.5 million metric tons of sulfur dioxide into the atmosphere while its pyroclastic lava flow incinerated virtually everything within a ...
In 1980, Washington State's Mount St Helens erupted, resulting in 57 human deaths, the most ever recorded for a volcanic eruption in the US, and the deaths of thousands of animals in the area. As well ...