Facts
An Earthquake can cause a Tsunami. True or False?
True
What is the most reacquiring natural hazard or disaster?
Cyclones and Hurricanes
Climate change is caused by_____
Human activity
What is one way to prepare for a Hurricane?
Prepare stocks of food/ Make your house hurricane proof and have storm shutters/ Know all evacuation routes/ Have proper supplies such as Flashlights, First aid
A naturally occurring event that will have a negative impact on people is what?
Natural Hazard
On average how tall can a Tsunami be?
a. 10 feet
b. 20 feet
c. 30 feet
d. 40 feet
On average a tsunami can be 30 feet (9 meters) tall.
Deforestation causes what to soils and can potentially lead to what?
It causes roots to be unable to grab the soil which could potentially lead to landslides.
How do natural hazards impact communities?
It can cause fatalities, destruction of properties, injuries and loss of livelihoods.
What are some modifications that could be done on buildings to make it earthquake proof?
Flexible pipes/ Install shock absorbers/ Smart meters to cut off gas supplies/ Reinforced foundations/ sprinkler system/ fireproof material/ lightweighr roofs
The location under the Earth's surface where an earthquake originates is called what?
What happened on December 26 2004?
A Tsunami hit Sumatra, Indonesia and most of its neighbouring countries in the Indian ocean.
Natural Hazards are becoming more_______ and more _______
Frequent and Intense
What are some physical and human impacts that can cause floodings?
Urbanisation/ Climate change/ Agriculture/ Weather/ Soil and rock type
Seismometers are used for measuring what?
They are used to measure tremors and can be useful for predicting.
Mudflows of volcanic materials caused when ash mixes with heavy rain or water from melting snow.
Lahars
What is the scale called to record the impact of an earthquake and its magnitude?
Bonus: Who is it named after?
The Richter scale
Bonus: Charles Francis Richter
Flooding is when the ________ of a river exceeds the capacity of the river's channel.
Discharge
What are the three impacts of drought?
Loss of crops/ Increase in food prices/ soil erosion and desertification/ Farmers are forced to relocate/ Water sources dry up/ Health problems or poor nutrition/ Famine and Dehydration.
What is the focus of strategic management?
Clue: The three p's
Prediction, Prevention, or Protection
Another name for Oceanic crust that is rich in magnesium and silicate minerals.
Sima
On average how many volcanoes erupt per year?
60 volcanoes
What are some opportunities presented by natural hazards?
Confidence in prediction, preparation and protection/ Employment opportunities/ Fertile soils to produce high crop yields (Volcanoes)/ Nice sceneries/ May provide food or water for drinking (Rivers and flooding).
What is one prediction in identify a natural hazard acquiring?
Change in animal behaviour/ Using satellite/ seismometers to predict tremors.
The establishment of a forest or stand of trees in an area where there were no previous trees cover could mitigate what?
Bonus: What is this process called?
Floodings
Bonus: Afforestation
A zone of earthquake foci in the upper part of a subducting oceanic plate at a destructive plate boundary.
Benioff zone