Natural Disasters by Lydia Xu https://padlet.com/lydiax/naturaldisasters Y6 Science en-us 2018-04-23 06:05:26 UTC 2018-05-07 07:04:51 UTC hello@padlet.com Wildfires - Elizabeth, Yibo, Catarina and Raynard https://padlet.com/lydiax/naturaldisasters/wish/254251460 What is it?
A wildfire, also known as a wild land fire, forest fire, vegetation fire, grass fire, peat fire, bushfire, or hill fire is an uncontrolled fire which can also consume houses or agriculture resources. Wildfires often begin unnoticed, but they spread quickly igniting bushes, trees and homes.
Where do they most occur?
They most occur in wild land areas and are common in the forested areas of the US and Canada. They are also susceptible in many places around the world, including much of the vegetated areas of Australia as well as in the Western Cape of South Africa.
Wildfires are also common in grasslands and scrublands.

What causes a wildfire?
Common causes of wildfires include lightning, human carelessness, arson, volcano eruption, and pyroclastic cloud from active volcano. Heat waves, droughts, and cyclical climate changes can also have dramatic effect on the risk of wildfires. Although, more than four out of every five wildfires are caused by people.

What to do:

Before
- Create defensible space to seperate your home from flammable vegetation and materials (minimum 30 ft).
- Keep all trees and shrub limbs trimmed so they do not come into contact with electrical wires.
- Keep roof surfaces clear if pine needles, leaves and debris and all times.

During
- Turn on TV or radio to get the latest emergency information.
- If you have a ladder, prop it against the house so you and firefighters have access to roof.
- Turn off air conditioning/air circulation systems.
- If hoses and adequate water are available set then up. Fill buckets with water.
- Turn a light on in each room for visibility in case of smoke.
- Open or take down flammable drapes and curtains.
- Secure your pets if possible.
- Close all Venetian blinds and non-flammable drapes and curtains.
- Move upholsetered furniture away from windows and sliding glass doors.
- Be ready to evacuate all family members and pets when requester to do so.
- Detach electrical garage doors. Back in your car and leave the keys in the ignition.

After
- Check with fire officials before attempting to return to your home.
- Use caution when re-entering a burned area - flare ups can occur.
- Check grounds for hot spots, smoldering stumps and vegetation. Use your buckets of water.
- Check the roof and exterior areas for sparks and embers.
- Check the attic and throughout the house for hidden burning, sparks and embers.
- Continue to check for problem areas for several days.
Contact 911 if any danger is perceived.


Find an occurrence of your natural disaster

When and where did it happen?
Peshtigo fire, October 8, 1871, in Peshtigo, Winconsin.

How did it impact the area/surrounding areas?


What damage did it cause?
1.2 million acres of forest have been consumed, an area 50% larger than Rhode Island. 12 communities were destroyed.

Loss of life?
An estimated 1500 to 2500 people died.


Type of clean-up required?


How did the people prepare for this event?

]]> 2018-04-23 06:11:32 UTC https://padlet.com/lydiax/naturaldisasters/wish/254251460 Tsunami - Nina, Kenny, Ben, Faye https://padlet.com/lydiax/naturaldisasters/wish/254251607 What is it?
A tsunami is a giant wave caused by earthquakes or volcano eruption.

Where do they occur?
They occur most in the Pacific ocean, Japan, Chile and the United states

Under what conditions?
when two tectonic plates move around under water. Witch create a big wave and push the water up.

What to do:
Before:
- go to a high point and prepare water and food.
-turn off gas and electricity. 
-have a emergency kit with you.
-store important document on higher grounds.


During:
-Don't go near the beach or water.
-listen to reporters.
-Be aware to not drink any of the water or tap water.
-stay inside.
-get to higher ground


After:Flood waters can be dangerous to walk or drive through. Wait for rescuers to evacuate your area.


Find an occurrence of your natural disaster

When and where did it happen?
In 2011, the Northern part of japan had a tsunami

How did it impact the  area/surrounding areas?

What damage did it cause?
First the earthquake is 9.0magnitude earthquake had damage the place bad already, after the earthquake there is a tsunami. Nuclear power station beside the ocean had been badly damaged.

Loss of life?
19300 people dead/missing
Entire towns were wiped out.
Type of clean-up required?
$300 billion  in damage

Farms, factories, roads, railways and electricity lines were destroyed, while almost half a million people have been made homeless.

How did the people prepare for this event?

People in Japan live in a constant state of readiness in a country that suffers a fifth of the world's most powerful earthquakes.

How did it impact the environment?
Several nuclear power stations were of major concern. Radiation exposure and leakage into the ocean is a concern.
Swept away enormous quantities of houses, boats, cars, trucks, and other debris along with them.
]]> 2018-04-23 06:12:30 UTC https://padlet.com/lydiax/naturaldisasters/wish/254251607 Flooding - Leo,Alex,David,Lucas https://padlet.com/lydiax/naturaldisasters/wish/254251675 What is it?
Flooding is when snow melts and the rain joins in with the amount of water causing huge areas that are completely filled with water

When do they occur?

Flooding can occur during any season, but some areas of the country are at greater risk at certain times of the year. Coastal areas are at greater risk for ooding during hurricane season (i.e., June to November), while the Midwest is more at risk in the spring and during heavy summer rains. Ice jams occur in the spring in the Northeast and Northwest. Even the deserts of the Southwest are at risk during the late summer monsoon season. 

Under what conditions?
when there is lots more rain then there usually is and sow melts which gives extra water. A flood can happen in all seasons but is more likely to happen from June to November?

What to do:
Before
Do not store your important documents in the basement. Keep them at a higher level, protected from flood damage.
Place sand bags around your house and prepare food and water. Fill clean containers with water so you can drink it during the flood.Shut off the electricity only if flooding has not yet begun and the area around the fuse box is completely dry.


During
Evacuate your house immediately. Make sure that you do not drink any water from taps no matter how thirsty you are. Dont drink all of your saved water in one go or else you won’t have any more water later. Be aware of the areas that the flood has affected . Do not drive through areas that are still flooded and avoid standing water as it may be electrically charged from underground or downed power lines. Do not camp near river, they can flood when you are unaware.

After
Do not re-enter your house unless authorities.Make sure the building is structurally safe.


Find an occurrence of your natural disaster

When and where did it happen?
In September, 1887, the yellow river of China flooded. It was caused by silt accumulation on the riverbed
How did it impact the area/surrounding areas?
After the flood, two million were left homeless, the later 1931 Yellow River flood may have killed as many as four million.
What damage did it cause?
It swamped agricultural settlements and commercial centres. It covered 50,000 square kilometres.
Loss of life?
It killed about 900,000 people.
Type of clean-up required?
The cleanup of the farm fields had to be undertaken immediately despite the approaching cold weather of winter.
How did the people prepare for this event?
The farmers made dykes to stop the river overflowing.The Yellow river is prone to flooding due to the elevated nature of the river, running between the dykes above the broad plains surrounding it.
]]> 2018-04-23 06:12:57 UTC https://padlet.com/lydiax/naturaldisasters/wish/254251675 Cyclone- Caleb, Liam and Ethan https://padlet.com/lydiax/naturaldisasters/wish/254251870 What is it?
A cyclone is a large scale air mass that rotates around a strong centre of low atmospheric pressure and contain strong winds and rain.

Where do they occur?
They occur in the South Pacific and Indian Ocean. Which is at the coral sea

Under what conditions?
The warm moist air over the ocean rises upward from near the surface. As the warmed moist air rises and cools off, the water in the air forms clouds.

What to do:
Before
Turn off all electricity, gas and water. Keep you're emergency kit with you. Keep listening to the radio for cyclone updates.

During
Bring your family into the strongest part of the house. If the building begins to break up, shelter under a strong table, bench or heavy mattress. If the cyclone suddenly stops, don't go out because it could be the middle of it.

After
Listen to the radio for an all clear sign. Stay away from damaged power lines, fallen trees and and flood water.
Find an occurrence of your natural disaster

Cyclone Debbie

When and where did it happen?
Near Airlie Beach on Queensland Whitsunday coast on Tuesday 28th of March 2017. It was a category 4 cyclone.

What damage did it cause?

$3.5 billion in damage. Roofs were blown off of houses and power outages affected at least 63,000 properties. Trees fell on main roads. Boats have been turned upside down. Ferry terminals were destructed. Rubbish around everywhere. Animals died.

Loss of life?

14 people died.

Type of clean-up required?
Key points:
  • Don't go out in the eye of the storm
  • Wait until authorities give the all-clear before heading outside
  • Once the danger has passed, be very aware of your immediate surroundings
  • Be careful of fallen powerlines, assume they are active
  • Be wary of trees that may be in danger of falling over
  • If a road is flooded, forget it
  • If you need SES assistance call 132 500 or lodge a request online at ses.qld.gov.au
  • If you are in a life-threatening situation call triple-0
 
How did the people prepare for this event?       

Stock up on food, fill bags with sand to prepare for flooding, evacuate low-lying areas, stay close to home and secure the property, make sure you have an emergency kit with food and and check on elderly family members, prepare an evacuation plan,                                                                                                                                                                                                                                                      
                 

 
     
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