Tracking the recovery of Mount St. Helens On May 18, 1980, Mount St. Helens in Washington state erupted, covering 230 square miles with volcanic debris and ash. Today’s Video of the Day comes thanks to NASA Goddard and features a look at the recovery of Mount St. Helens every year since then, all thanks to data collected from Landsat satellites.
The recovery of the forests that had once surrounded Mount St. Helens depended partly on the neighboring ecosystems. For example, Roger del Moral, a biologist at the University of Washington, and his colleagues watched the recovery of two areas covered by lahars. In 1980, Mount St. Helens roared back into major activity with a massive eruption that leveled surrounding forest, blasted away over a thousand feet of the mountain’s summit, and claimed 57 human lives.
Credit: NASA Goddard