5 Massive Landslides Caught On Camera
Summary
TLDRThis video script delves into the unpredictability and power of landslides, showcasing five massive examples caught on camera. From the 2004 Otto, Japan landslide triggered by cracks in the road to the quick clay phenomenon in Norway, each case illustrates the diverse causes and devastating impacts. The script also highlights the 1980 Mount St. Helens eruption and a slow-moving landslide near Yosemite, emphasizing the importance of monitoring and preparedness in mountainous regions to mitigate the risks of these natural disasters.
Takeaways
- 🌏 Landslides can occur globally due to various causes like earthquakes or soil erosion and can affect both remote and populated areas.
- 🚨 Landslides often happen without warning, but in rare cases, signs like cracks in the road can indicate an impending disaster.
- 🔍 In Japan, engineers detected cracks in a highway near Otto, leading to the closure of the road and eventual landslide, highlighting the importance of monitoring and precaution.
- 🌧️ A typhoon's rainfall in Japan saturated the ground, contributing to the landslide by turning the soil nearly into liquid.
- 🏞️ Many landslides occur in remote areas, which is why they are not frequently reported or witnessed.
- 📹 A humanitarian worker in Nepal captured multiple landslides on camera during an earthquake, showing the sudden and dramatic nature of these events.
- 🇳🇴 A landslide in Norway was caused by 'quick clay,' a substance that can turn liquid under stress, leading to a large area of land slipping into the sea.
- 🗻 The 1980 eruption of Mount Saint Helens in the U.S. was preceded by warning signs, including a massive bulge on the mountain's side, which eventually led to the largest landslide in history.
- 🛣️ A slow-moving landslide near Yosemite National Park in 2006 demonstrated how even gradual geological events can disrupt transportation and require significant recovery efforts.
- 🏔️ For residents of mountainous regions, landslides are a constant threat, and vigilance in monitoring environmental changes is crucial for safety.
- 👀 The video script emphasizes the unpredictability and potential deadliness of landslides, as well as the importance of early detection and response.
Q & A
What is the general perception of the ground beneath our feet in relation to natural disasters?
-The ground beneath our feet is generally perceived as a trustworthy and stable support, unlike natural disasters such as lightning and hail which come from above.
What can cause a landslide and when can they be particularly dangerous?
-Landslides can be caused by factors such as earthquakes, soil erosion, and heavy rainfall. They are particularly dangerous when they occur without warning, which is often the case.
What happened in Otto, Japan, that led to the closure of a highway?
-Engineers in Otto, Japan, noticed cracks forming in the roadway along a stretch of highway near the city. These cracks, which were getting bigger over a few weeks, indicated that the ground was breaking free and starting to slide, leading to the closure of the entire road in February 2004.
How did the landslide in Otto, Japan, unfold on August 10th of the same year?
-On August 10th, the stress on the mountain became too much, causing the entire side of the mountain to break free. Thousands of cubic meters of earth tumbled down, dragging trees along with it, in a dramatic landslide captured on camera.
What is believed to have contributed to the landslide in Otto, Japan?
-The rainfall from a typhoon that struck earlier in the year is believed to have saturated the ground so much that the soil nearly turned to liquid, contributing to the landslide.
Why are landslides not more widely reported in the news despite being a common occurrence?
-Many landslides happen in remote parts of the world where no one is there to witness them, which is why they are not more widely reported in the news.
What was captured on camera by a humanitarian worker in Nepal?
-A humanitarian worker in Nepal captured multiple landslides on camera while walking through a remote section of land. The video shows around 8 to 12 separate slides of varying sizes triggered by a major earthquake.
What is 'quick clay' and how did it contribute to a landslide in Norway?
-Quick clay is a type of clay that is very unstable and can take on a more liquid state than a solid if subjected to sufficient stress. This phenomenon led to a landslide in Norway where hundreds of square feet of land slipped into the sea.
What was the largest landslide in history and what caused it?
-The largest landslide in history was caused by the 1980 eruption of Mount Saint Helens. A magnitude 5.1 earthquake triggered the failure of a huge bulge on the mountain's north face, resulting in a landslide with a volume of 2.79 cubic kilometers.
What was the situation with the slow-moving landslide outside of Yosemite National Park in 2006?
-In 2006, a slow-moving landslide occurred outside of Yosemite National Park where a section of rock had broken off from a cliff and unstable soil underneath caused a gradual accumulation of rocks over the course of many days, eventually overtaking the highway.
What can people living in mountainous regions do to mitigate the threat of landslides?
-People living in mountainous regions should stay on their guard, closely monitoring the environment around them, which can help in saving lives and property by allowing for early detection of potential landslides.
Outlines
🌏 Unpredictable Ground: The Perils of Landslides
This paragraph delves into the deceptive trust we place in the ground beneath us, highlighting the potential for landslides to occur without warning. It discusses the causes of landslides, such as earthquakes and soil erosion, and the varying impact they can have, from remote areas to populated regions. The narrative recounts a specific incident in Japan where engineers detected cracks in a highway, signaling an impending landslide. The situation escalated, leading to the closure of the road and eventual massive landslide on August 10, 2004. The paragraph also touches on the rarity of warning signs and the importance of monitoring geological activity to prevent casualties.
🏔️ Natural Disasters Caught on Camera: The Power of Landslides
This section of the script focuses on the unpredictability and the sheer force of landslides, as captured on camera. It recounts the story of a landslide in Japan, triggered by the saturation of soil due to typhoons, and the successful evacuation due to the vigilance of engineers and scientists. The narrative then shifts to a humanitarian worker in Nepal who filmed landslides triggered by an earthquake, showcasing the geological activity in sparsely populated areas. The paragraph also introduces the concept of 'quick clay' as a cause of landslides, as exemplified by an event in Norway, and discusses the 1980 eruption of Mount Saint Helens, which resulted in the largest landslide in history due to the mountain's bulge failing after an earthquake.
🛤️ Slow-Moving Landslides: The Unstoppable Force
The final paragraph describes a slow-moving landslide that occurred alongside a highway near Yosemite National Park in 2006. It details how a section of rock broke off from a cliff and the unstable soil beneath initiated a gradual landslide. Over several days, rocks accumulated, eventually overtaking the highway and necessitating the construction of temporary bridges and extensive cleanup. This account illustrates the helplessness of humans in the face of such natural phenomena, emphasizing the importance of vigilance and monitoring in mountainous regions to mitigate the impact of landslides.
Mindmap
Keywords
💡Landslide
💡Natural Disaster
💡Earthquake
💡Soil Erosion
💡Typhoon
💡Quick Clay
💡Mount Saint Helens
💡Volcanic Eruption
💡Geologically Active Region
💡Monitoring
💡Humanitarian Worker
Highlights
Ground beneath our feet is typically considered trustworthy and supportive, but landslides can occur due to natural disasters.
Landslides can be caused by earthquakes, soil erosion, and happen globally with varying impacts on populated areas.
In Japan, engineers noticed cracks in a highway near Otto, indicating a potential landslide and leading to road closure.
On August 10th, 2004, a landslide occurred due to the stress from the cracks, with thousands of cubic meters of earth tumbling down.
Rainfall from a typhoon earlier in the year may have contributed to the landslide by saturating the ground.
Thanks to monitoring, the area was evacuated in time, preventing any casualties from the landslide.
Landslides are common worldwide but often go unnoticed due to their remote locations.
A humanitarian worker captured multiple landslides on camera in Nepal, triggered by a major earthquake.
The landslides in Nepal were visible in various sizes and nearly crushed a path walked by the worker only 20 minutes prior.
Landslides can also be caused by quick clay, a phenomenon that led to a large area of land slipping into the sea in Norway.
Quick clay becomes unstable and can turn into a liquid state under sufficient stress, causing landslides.
The 1980 Mount Saint Helens eruption in the U.S. was preceded by warning signs including earthquakes and a bulging mountainside.
The largest landslide in history occurred at Mount Saint Helens, with a volume equivalent to over a million Olympic-sized swimming pools.
A slow-moving landslide was captured on a highway outside Yosemite National Park in 2006, lasting for several days.
The slow landslide gradually accumulated rocks, eventually overtaking the highway and requiring extensive cleanup and temporary bridges.
Landslides are a constant threat in mountainous regions, requiring constant vigilance and monitoring to protect lives and property.
Transcripts
if there is one thing in this world it
would seem you could trust
it would be the ground beneath your feet
lightning
hail and other natural disasters come
from above
but what you're standing on will always
support you right
well if you ever find yourself in the
wrong place at the wrong time
then you just might find yourself victim
to a tremendous landslide
whether it's caused by an earthquake or
soil erosion
landslides happen all over the globe
sometimes they happen in remote areas
far away from any people other times
it's a real shame
someone decided to set up shop on that
specific part of land
from a highway in japan to houses being
swept into the ocean
here are five massive landslides caught
on camera
one of the scariest things about
landslides is that they usually happen
without warning
but on very rare occasions warning signs
do appear
indicating that disaster is on the
horizon along a stretch of highway near
the city of otto japan
engineers noticed that there were cracks
forming in the roadway over the course
of a few weeks
the cracks would get a little bigger as
this section of road was built on the
side of a steep mountain
engineers knew that this could be a
warning sign that the ground below it
was breaking free and starting to slide
these things were noticed
in february of 2004 and it was enough to
cause the closure of the entire road
movements were monitored by extensor
meters and the data showed that the
ground was surely creeping in a downward
motion
inch by inch cameras were also set up by
the government to monitor the area
finally on august 10th of that year
the stress became too much and the
entire side of the mountain broke free
[Music]
as you can see in the video thousands of
cubic meters of earth
tumbled down the side of the mountain
dragging trees along with it in one of
the craziest natural disasters we've
ever seen
it is believed that the rainfall of a
typhoon that struck earlier in the year
saturated the ground so much that the
soil nearly turned to liquid itself
thanks to the watchful eye of engineers
and scientists the area had been
evacuated many months before this
landslide
so there were no casualties or injuries
of any kind
believe it or not landslides are
actually a very common occurrence
throughout the world
but have you ever stopped to ask
yourselves why you've not heard much
more about them
if they're so common it would probably
be bigger news right
in actuality many of these landslides
happen in the most
remote parts of the world where no one
is there to witness them
luckily for one humanitarian worker he
was able to capture a number of these
landslides on camera
while walking through a remote section
of land in nepal
the hiker was filming when suddenly a
major earthquake
rocked the area he was obviously a
little panicked when it happened
but after he gained his composure his
camera panned around to the mountain on
the other side of the valley
in multiple places on that mountain
landslides can be seen
in the video you can count around 8 to
12 separate slides of varying
sizes he's even able to show a path that
they were walking only
20 minutes prior that was nearly crushed
from the debris
i'm okay i'm okay stay here
major earthquake holy crap
oh my god look at that we're okay
i was hiding behind this rock right here
holy crap i'm shaking
i'm okay i'm okay just relax wait look
at that
look at all the landslides that were
triggered nepal
is a very geologically active region as
far as earthquakes are concerned
but it is also a sparsely populated area
so these landslides often go relatively
unnoticed
and unreported luckily for this man he
not only captured an incredible moment
on film
but survived to tell the tale
there are so many factors that can
contribute to a landslide
sometimes rains saturate the soil of
mountains causing
massive chunks of them to break free
from the site other times they can be
triggered by powerful earthquakes
however this video documents a totally
different landslide that was not caused
by either of these factors
it was caused by a phenomenon known as
quick clay
and it is this that led to hundreds of
square feet of land in norway
to slip into the sea a man named jan
eagle buckaby who filmed the landslide
described the event i had just made two
sandwiches when i heard creaking
at first i thought there was someone in
the attic but then i looked out the
window
and saw the power lines ripping and the
ground moving
he watched helplessly as the ground
started moving towards the sea
carrying everything on the land with it
eventually once it reached the sea the
ground sunk beneath the surface
along with trees and power lines there
were about eight structures as well
all of which were left floating freely
on the surface of the water
luckily there was no one killed or even
injured
only one dog was on the land when it
gave way
and he was able to swim to safety
so what is quick clay it is a type of
clay that is very
unstable so much so that if subjected to
sufficient stress
the very makeup of it takes on more of a
liquid state than a solid
quick clay is mainly found in countries
closer to the arctic circle such as
canada
sweden finland and russia and account
for many landslides each year
one of the most powerful and destructive
geological events in american history
was the 1980 eruption of mount saint
helens
the blast from the eruption traveled at
speeds of over 670 miles per hour
ejecting millions upon millions of tons
of ash and rock in the blink of an eye
however geologists had warning signs
about the impending eruption
there were some minor earthquakes and
gaseous expulsions from time to time
but nothing was more telling than the
huge
bulge that formed on the mountain's
north face
over the course of a few months the
incredible pressure from within the
volcano was putting a ton of stress on
the mountainside
there was so much stress that the entire
north face
began to bulge this bulge measured about
270 feet high in march before the
eruption
for the rest of april and early may this
bulge grew by five or six feet
per day eventually by mid-may
it extended more than 400 feet or 120
meters
on may 18 1980 on the other side of the
valley from the mountain
a photographer had been shooting photos
capturing the bulge in its entirety
as he was shooting a magnitude 5.1
earthquake
struck underneath the mountain it was
the trigger needed to cause the
mountain's bulge to fail
what resulted was the largest landslide
in history the total volume of the
mountain that collapsed
was 2.79 cubic kilometers
that's the equivalent of one million one
hundred and sixteen
thousand olympic-sized swimming pools
the sudden release of these massive
sections of land are what really make
landslides both incredible to watch yet
deadly to experience
it can catch people off guard and leave
nowhere to shelter
however there are rare occasions that
landslides are slow moving
and can last for quite a while this was
the case on a stretch of highway just
outside of yosemite national park
during the spring of 2006 alongside a
section of highway 140
a section of rock had broken off from
the top of a huge cliff
this is not an unusual occurrence
however
the soil underneath the rocks was very
unstable
and as it had been disturbed a chain
reaction had started
soon a few more rocks broke off then
more then a few more now as you can see
in the video
these rocks weren't huge by any means
but
it is the gradual accumulation of rocks
that made this slide spectacular
in total this section of mountain
continued to slowly collapse over the
course of many days
little by little the rocks would
overtake the highway
finally after nearly a week the rocks
stopped falling
and the soil was able to settle again
road crews had to build temporary
bridges around the disaster area while
cleanup commenced
eventually the road was reopened but
this goes to show exactly how helpless
people are to stop something like this
even when it happens at an incredibly
slow rate
for those that live in the mountainous
regions of the world landslides will
always be a threat
so many things can contribute to them so
people simply have to stay on their
guard
closely monitoring the things around
them only then
can lives and property be saved to see
another video just like this one be sure
to click the link on screen now
and with that thanks for watching and be
sure to tune in next time
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