NASA | Mount St. Helens: Thirty Years Later

Thirty years ago, on May 18, 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.

This short video shows the catastrophic eruption - and the amazing recovery of the surrounding ecosystem - through the eyes of the Landsat satellites, which have been imaging our planet for almost forty years.

See the images and read more, visit NASA's "World of Change" site: http://earthobservatory.nasa.gov/Features/WorldOfChange/sthelens.php

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Category:

Science & Technology

Tags:

• NASA
• Earth
• Mt St Helens
• Volcano
• Landsat
• recovery
• anniversary

[odysseus9672]

I wonder why that lake on the north (? up = North?) face was changing shape so much...

[NASAexplorer]

@odysseus9672 @odysseus9672 Although Spirit Lake (in the upper right of the image) changed a great deal during and just after the 1980 eruption, the changes you're seeing are actually from a massive floating mat of downed trees, most of which date from the eruption. The prevailing winds push the raft of trees around the lake.

[geturphil69]

who is the artist to this song

[NASAexplorer]

@geturphil69 The music is entitled "Crucial Moment," by composer Charles Denler, published by Pretty Linda.

[mariehansler]

Around 1998 they started a logging process in the area, that for this video, overshadows the importance of the regrowth of vegetation around the blast site of Mt.St.Helens....watch this video again and look in the lower left side of the screen...very damaging.

[jubani93]

it's soo stupid. but dats good lessons from ya uncle sam. all the photos are from the same exact place and may be the same level of elevations.

[tpstrat14]

@NASAexplorer Awesome. Thank you for the useful knowledge!

[OrigProdigy]

Was this music also used in October Sky?

[Bucktown1999]

I don't understand the point

[alitarabi]

I love NASA !

[Cunelito]

wicked vid

thx for the upload

[rockondon]

@candymanbrian weird how the bible doesnt talk about cavemen or wooly mammoth or dinos?

[rockondon]

if you look from 1980 and watch my footage music video youll see alotta trees in the lake are sunken and gone..its changed so much up there.to me its sad i woulda

loved to have camped there.trillium lakes pretty like spirit lake was.the freeway is

amazing burried 14miles of freeway

[rockondon]

thats amazing..check out my blast zone video