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Avalanches

An avalanche is a mass of snow moving rapidly down a slope, sometimes reaching speeds of 80 miles per hour, triggered by either natural causes or human activity. Avalanches are responsible for more deaths per year than earthquakes. They are often triggered the first clear day after a storm because it has made the snowpack unstable. This category includes descriptions of avalanches and how they occur, their effects, warning signs, and safety measures.

356 Questions

Where was the most powerful avalanche?

The Mount St. Helens volcano was the strongest volcano

What should you do if you see an avalanche coming?

Move to the side of the avalanche path if possible to get out of the way. Try to grab onto a tree or rock to anchor yourself. If caught in the avalanche, swim hard to stay on the surface and try to create an air pocket in front of your face for breathing.

What are the main features of an avalanche?

Lots and lots of falling snow coming down the side of a mountain.

When and where is the most recent avalanche?

The most recent avalanche will occur on 10th of July 2009 their will be lots of snow and other cold stuff may cause colds and flues e.g. superhuman sneezes with a bad after cough. it will start at 12:38pm because someone ran into a parked car with their dog.

many causualties may occur if not wearing socks.

i suggest to stack up on bananas because u will need the potassium.

RUNNNNN!!!!!!!!! GET BANANAS AND SOCKS DONT GO FOR WALKS WITH YOUR DOGS BECAUSE YOU ARE NOT FAT.

helllllllllllllllllllllllllllllllllllllllllllllllllllllooooooooo........

Do avalanches happen often on Mt Everest?

Yes, avalanches are a common occurrence on Mount Everest due to the steep terrain, shifting snowpack, and unpredictable weather conditions. Climbers and mountain guides must be constantly aware of the avalanche risk and take necessary precautions to ensure their safety.

What is the most recent avalanche ever?

The world's largest recorded avalanche occurred on May 18, 1980 when Mount St. Helens erupted.

A few facts:

* The eruption had the energy of 1000 Hiroshima-sized bombs

* It resulted 2/3 a cubic mile of the north slope sliding down into the valley at over 150 miles per hour. * Debris deposits as deep as 600 feet and as far away as 15 miles

* The adjacent 23 square mile valley was covered with an average of 150 feet of debris.

What do you do if you are trapped inside an avalanche?

if you have enough room, spit! this will tell you what direction is up and down due to gravity. Now dig in the direction opposite to the way it fell down, this is up! now at least you know you are going in the right direction to dig yourself out.

What is a proclastic flow?

A proclastic flow is a type of debris flow that contains a high percentage of volcanic materials such as ash and rocks. These flows are associated with volcanic eruptions and can move at high speeds, posing significant risks to surrounding areas due to their destructive nature.

How can people prepare for an avalanche?

Watch your own actions. Avoid skiing on snow at the top of a mountain or hill if other people are directly below you, as the snow could break loose and crush them

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Where do avalanches come from?

the French 'avalanche' comes from the Romanche (a language spoken in Switzerland) 'avalantze'

What is the amount of avalanches a year?

in one year in north America over 100,000 avalanches happen each year

What are the most common causes of avalanches?

· Deforestation can contribute to avalanche formation. Hence, rainwater cannot be trapped and held. This removes the natural barrier to avalanches and landslides.

· When mountainous areas are cleared and developed to tourist resorts, people start visiting it. The various activities of people wear away the vegetation. Thus, like deforestation, the natural barrier to avalanches is removed

Other human causes are contruction, mining and global warming. Road construction steepens the slopes, while quarrying and mining causes big holes to be dug into the ground, making the land unstable and may collapse. Global warming causes changes in weather patterns. It can cause snow to melt when it should not, and thus, increasing the risk of an avala

What are the disadvantages of avalanches?

Avalanches can not only cause serious immediate bodily harm by crushing, freezing or suffocating, but they can trap people in houses for long enough that they starve. Also, they bury any wildlife and crops in the surrounding area (if there are any crops), which ruins the ecosystem in the long run.

What does avalanche sound like?

An avalanche sound like a roaring trucktor i think. It sould be like a hurricane.

Weather satellites used in forecasting disaster?

Satellites above the atmosphere can get a clear, big picture of Earth's cloud formations. By analysing these cloud patterns, meteorologists can forecast how these clouds will change and move, and predict the weather, be it rain or shine, for many areas. For example, hurricanes can be easily spotted from satellites but not easily spotted from ground due to its size, and thus satellites come in very helpful. Also, infra-red satellite forecasting can also determine the temperatures in different areas on Earth's surface, which aids meteorologists in finding out cloud heights, cloud types, water cycles and sea surface termperatures (an important factor in the formation of hurricanes).

What happens before after and during an avalanche?

Know the avalanche types.

Take an avalanche safety training course and read up on avalanches.

Recognize nature's warning signs.

Pay attention to forecasts and heed professional warnings.

Know how to test the snow for avalanche potential.

Practice avalanche safety while out and about.

What role does avalanches play in re-shaping the earth's surface?

Avalanches play a significant role in reshaping the Earth's surface by rapidly transporting large volumes of snow, ice, and debris down slopes, which can alter the landscape significantly. They can carve out valleys, create new landforms, and contribute to soil erosion by removing vegetation and exposing underlying rock and soil. Additionally, the deposition of avalanche debris can lead to the formation of new land features, such as fans and cones, further modifying the terrain. These processes contribute to the dynamic nature of mountainous regions and influence local ecosystems.

What is a lee slope in an avalanche?

The lee slope is not actually an aspect of an avalanche itself, but it can be a cause if an avalanche.

It is the sheltered side of a peak or slope that is not exposed to wind and sunlight. If snow accumulates here, daily freezing and thawing from contact with sunlight, as well as the action of wind that normally would blow loose snow away, will not have as great of affect in moving loose snow and keeping the snow packed with layers of ice. This snow could avalanche easily.

What happens during avalanche?

During an avalanche, a mass of snow, ice, and rock collapses and rapidly slides down a mountainside. This can be triggered by various factors such as heavy snowfall, changes in temperature, or human activity. Avalanches can be extremely dangerous and destructive, causing injury or death to anyone caught in their path.

Which igenous rock has a pyroclastic texture meaning it waf formed frm a glowing avalanche?

which igeneous rock has a pyrocastic texture meaninit was formed from a glowing avalanche?

this is not an answer it is a question, ok!!!!!!!!!!!!!!!!!

How did the 1999 baffin island avalanche start?

The 1999 Baffin Island avalanche was triggered by a cornice fall, which is an overhanging mass of ice and snow breaking off from the edge of a ridge. This event led to a large slab avalanche as the snow fractured and slid down the mountain slope, resulting in a significant avalanche that tragically claimed the lives of seven climbers.