The Mount St. Helens eruption on May 18, 1980, was a catastrophic event triggered by an earthquake, resulting in the largest landslide in recorded history and a devastating pyroclastic flow that reshaped the landscape and caused significant loss of life and ecological damage.
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[Music] spring
1980 Mount St Helens is one of the major
Mountains it's an area of outstanding
Wildlife for over 120 years the volcano
has been
quiet but in recent weeks it's been
rumbling nobody is sure what to
expect then on May 18th
1980 a 5.1 magnitude earthquake rocks the
mountain within 10 seconds
the volcano's Northern flank collapses
in the largest landslide in recorded
history it releases millions of tons of
explosion a cloud of searing gas and
rock known as a pyroclastic flow races
Countryside
flattened 4 miles below the summit an
debris the eruption continues to shoot
air it was just again astounding is the
best word to describe what happened in
Helens the northern slope of the
extinguished 57 people are
dead they include loggers campers
scientists and a
reporter some are up to 13 mil away in
the plume of steam and Ash Rises miles
into the sky for the rest of the day the
drifting ash cloud disrupts air traffic
for hundreds of
enormous across more than 200 square
trees thousands of birds from more than
gone deer and Elk are wiped out
this vast area of Devastation becomes
Zone nearer the crater Ashen rocks from
the landslide litter the northern slope
it's called the pmus
crater 4 miles from the volcano the
recognizable the Avalanche Has Lifted
ft the surface is is smothered in dead
trees hundreds of species of Aquatic
Life including insects amphibians and
fish are
killed it was black water and it
degassed and bubbled and there was hot
springs that were coming up if you were
to put your fingers in to your wrist and
wiggel them you wouldn't even be able to
see your fingertips that's how grossly
was Mount St Helens is now now a
lifeless jumble of shattered Forest Rock and
and
return the eruption was so powerful it
mountain Mount St Helens was a typ iCal cone-shaped
cone-shaped
volcano but the landslide has torn 1300
ft off the
summit leaving a gaping crater a mile
wide and 2,000 ft
deep it's the largest volcanic eruption
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