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On May 18, 1980, at 8:32 a.m., Mount St. Helens erupted with incredible force, reshaping the landscape of Washington State forever.

In just seconds, the north face of the volcano collapsed, triggering a massive landslide and a lateral blast that leveled forests, destroyed roads, and sent ash 24 kilometers into the sky. The eruption released energy equivalent to hundreds of nuclear bombs, leaving a lasting mark on both nature and humanity.

In this documentary, you will discover:
• the warning signs before the eruption
• the massive landslide and lateral blast
• survivor and scientist testimonies
• the human, ecological, and economic impact
• how this eruption transformed modern volcanology

A dramatic and factual account of one of the most violent volcanic eruptions in modern history.

Catégorie

📚
Éducation
Transcription
00:00Imagine a peaceful morning in the Pacific Northwest, May 18, 1980.
00:06Suddenly, at 8.32 a.m., the ground trembles.
00:10Mount St. Helens, a majestic peak in Washington state, explodes with a force that defies imagination.
00:17This wasn't just an eruption.
00:19It was a cataclysmic event that would be seared into modern history.
00:23In a matter of terrifying seconds, the entire north face of the volcano collapsed.
00:28This triggered the largest landslide ever recorded.
00:32A colossal wave of rock and ice that thundered down the mountain, wiping out everything in its path.
00:38But that was only the beginning.
00:40A sideways or lateral blast erupted from the volcano, moving at near supersonic speeds.
00:47This scorching cloud of gas, ash and rock flattened forests for miles around,
00:52snapping massive trees like toothpicks and instantly vaporizing lakes.
00:56The energy released was equivalent to hundreds of nuclear bombs.
01:01A towering plume of ash shot 15 miles, or 24 kilometers, into the sky.
01:06Eventually blanketing several states and circling the globe,
01:10the sky turned black as midnight in broad daylight.
01:13For those who witnessed it, the sound was a deafening roar
01:16that seemed to shake the very foundations of the Earth.
01:20Before the disaster, scientists had noticed warning signs.
01:26The mountain was rumbling with small earthquakes and a noticeable bulge was growing on its north flank.
01:32But no one could have predicted the sheer scale of the devastation.
01:36The human toll was tragic.
01:39Fifty-seven people lost their lives,
01:41and the lives of countless others were turned upside down as homes, roads,
01:45and entire communities were destroyed.
01:48Yet, from this tragedy, a new era of science was born.
01:52The Mount St. Helens eruption became an unparalleled natural laboratory for volcanologists.
01:57It provided invaluable data that completely transformed our understanding of how volcanoes work,
02:03especially stratovolcanoes,
02:05and dramatically improved our ability to predict future eruptions and mitigate their risks.
02:10Today, if you visit Mount St. Helens,
02:14you can still see the dramatic scars left on the landscape.
02:18The barren plains, the toppled forests,
02:20and the vast horseshoe-shaped crater
02:22serve as a powerful testament to nature's raw, untamable power.
02:27The area has also become a remarkable story of recovery,
02:30as life slowly but surely returns to the blast zone.
02:34Mount St. Helens stands as a solemn reminder of that day
02:36the mountain exploded, a monument to the awesome forces that shape our planet
02:41and the delicate balance we share with it.
02:43Thanks for watching.
02:45If you found this story as fascinating as I did,
02:48don't forget to like this video
02:49and subscribe for more deep dives into the powerful events that have shaped our world.
02:54See you next time.
02:54We'll see you next time.
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