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  Image: Geographic Location Direction Photo #: ISS052-E-8512 Date: Jun. 2017
Geographic Region: USA-WASHINGTON

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  An Astronaut's View of Mount St. Helens

An astronaut aboard the International Space Station shot this photograph of Mount St. Helens almost 37 years after the cataclysmic volcanic eruption. Fifty-seven people lost their lives and thousands of animals were killed by the violent eruption that lasted nine hours and dramatically changed the landscape.

On the morning of May 18, 1980, a magnitude 5.1 earthquake caused the north face (facing right in this image) of the stratovolcano to detach and slide away, creating the largest landslide ever recorded. The great movement of mass and weight by the landslide allowed for the partially molten, highly pressurized, gas-rich rock inside the volcano to erupt. A column of ash rose 80,000 feet from the summit into the atmosphere and deposited ash across 12 U.S. states. Nearly 150 square miles of forest were blown over from the turbulent wind generated by the pressurized gas explosion.

A mixture of lava and rock fragments (pyroclastic deposits) spilled down the north face of the mountain toward Spirit Lake, resulting in the characteristic horseshoe-shaped crater. The heat released during the eruption caused the glaciers on the volcano to melt and mix with rocks and ash. These lahars, or volcanic mudslides, flowed as far as the Columbia River (approximately 50 miles away).

The volcano continued to erupt less violently until 1986, with volcanic activity transitioning to thick flows and lava dome growth. The volcano is still actively monitored by the U.S. Geological Survey for gas emissions and earthquakes.

In the years after the initial eruption, the land around the volcano was passed from the Burlington Northern Railroad to the U.S. Forest Service. In 1982, Mount St. Helens National Volcanic Monument was created, and the environment was left to respond naturally to the disaster. The area has gradually come back to life since the late 1980s. The minerals and nutrients deposited in Spirit Lake during the eruption are responsible for the vibrant and rapidly growing trout and aquatic vegetation populations. With the volcano currently in a relatively quiet state, it is now a popular tourist destination for climbers to make the journey to the crater rim.

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Images: All Available Images Low-Resolution 427k
Mission: ISS052  
Roll - Frame: E - 8512
Geographical Name: USA-WASHINGTON  
Center Lat x Lon: 46.2N x 122.2W
Film Exposure:   N=Normal exposure, U=Under exposed, O=Over exposed, F=out of Focus
Percentage of Cloud Cover-CLDP: 10
Camera: N6
Camera Tilt: 53   LO=Low Oblique, HO=High Oblique, NV=Near Vertical
Camera Focal Length: 1150  
Nadir to Photo Center Direction: SW   The direction from the nadir to the center point, N=North, S=South, E=East, W=West
Stereo?:   Y=Yes there is an adjacent picture of the same area, N=No there isn't
Orbit Number:  
Date: 20170625   YYYYMMDD
Time: 173103   GMT HHMMSS
Nadir Lat: 48.6N  
Latitude of suborbital point of spacecraft
Nadir Lon: 118W  
Longitude of suborbital point of spacecraft
Sun Azimuth: 118   Clockwise angle in degrees from north to the sun measured at the nadir point
Space Craft Altitude: 216   nautical miles
Sun Elevation: 52   Angle in degrees between the horizon and the sun, measured at the nadir point
Land Views:  
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Atmosphere Views:  
Man Made Views:  
City Views:  
Photo is not associated with any sequences

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This service is provided by the International Space Station program and the JSC Earth Science & Remote Sensing Unit, ARES Division, Exploration Integration Science Directorate.
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