Mount St. Helens, Washington, USA, 1973

Mount St. Helens, Landsat 1, 1973

Detailed Description

Mount St. Helens is an active stratovolcano in southwest Washington State.  This image was acquired September 15, 1973 by the Landsat 1 satellite. 

On May 18, 1980, a major volcanic eruption occurred at Mount St. Helens. The eruption was preceded by a series of earthquakes and steam-venting episodes, and an earthquake on May 18 caused the entire weakened north face to slide away, creating the largest landslide ever recorded. This allowed the high-pressure gas and steam to suddenly explode northwards. It has often been declared as the most disastrous volcanic eruption in U.S. history.

Visit Earthshots: Satellite Images of Environmental Change to read more about this area, and to learn how how satellite imagery is used to track change over time around the world.


Image Dimensions: 1024 x 791

Date Taken:

Lat / Long: 46.202100000000 / -122.180800000000

Location Taken: WA, US