Tectonic Hazards

Question 1

Constructive boundary

Answer 1

A constructive plate boundary, occurs when oceanic plates move apart

Question 2

Destructive plate boundary

Answer 2

An destructive plate is where oceanic and continental plates move together

Question 3

Conservative plate boundary

Answer 3

A conservative plate boundary occurs where plates slide past each other in opposite directions. Pressure builds up,the plate breaks and produces an earthquake

Question 4

Collision plate boundary

Answer 4

Collision zones occur when two continental plates collide. The plates are too light too sink so both are forced up and form mountains

Question 5

How do you measure an earthquake

Answer 5

The richter scale

Question 6

Case study Earthquake: Haiti

Answer 6

Location: Haiti. Small island in the Caribbean

Causes:
North American plate sliding past the Caribbean plate at a conservative plate margin. The pressure built up by friction was eventually released causing a magnitude of 7 in the Richter scale

Effects: Social

• 230,000 people were killed
• 1 million people homeless

Economic
*Total damages have reached and estimated total of 7 billion

Environmental

• Uprooted trees
• destruction of farmland

Question 7

Ways to reduce earthquake impacts

Answer 7

Earthquake proof buildings that can withstand the force of an earthquake

Have earthquake drills in areas that are prone to earthquakes. This can help reduce death injuries during earthquakes

Question 8

Factors that affect impacts of earthquakes

Answer 8

Distance from epicenter:
The epicenter is the point in the earths surface directly above the focus. The focus is where the earthquakes begins. The further away the impact is less severe

Question 9

Dangers of living near a volcano

Answer 9

Eruption of volcano

Question 10

Why people choose to live near volcanoes

Answer 10

Mineral rich soils which is ideal for farming
Volcanoes attract millions of people which create many jobs
Geothermal energy used to produce electricity

Question 11

Case study: Krakatoa Volcano

Answer 11

Eruption: 1883
Location: Indonesia
Effects: Social
36,000 deaths

Economic
500 million total damage

Environmental
Uprooted trees
Destruction of farmland

Question 12

What is a supervolcano

Answer 12

An unusually large volcano having the potential to produce an eruption with major effects on the global climate

Question 13

How earthquakes occur

Answer 13

Earthquakes happen when two large pieces of the earths crust slip. This causes shock waves to shake the Earth and form into an earthquake

Question 14

Hurricane recipe

Answer 14

Precursor storms + Warm air + Low wind Shear

Question 15

At what temperature does the water need to be so that a hurricane occurs

Answer 15

27+

Question 16

In order to call it a hurricane it has to go at what speed

Answer 16

74mph +

Question 17

The hurricanes in Northern Hemisphere turn in which direction

Answer 17

Clock wise

Question 18

The hurricanes in the Southern Hemisphere turn what direction

Answer 18

Anti clock wise

Question 19

Impacts of hurricane Katrina

Answer 19

Social
1300 deaths
2260 people stayed in shelters

Economic
75 billion dollars worth of damage

Environmental
Widespread flooding

Question 20

Tornado recipe

Answer 20

Low warm air + high cold air= Wind shear

Wind Shear + Warm moist conditions = thunderstorms

Question 21

Impacts of tornadoes

Answer 21

Social
Destruction of homes= Homeless
Deaths
Lack of safe water

Economic
40 million pounds worth of damage in Birmingham= They could’ve spent it on education
Damage to tourism

Environmental
Trees were ripped up

Question 22

What is a drought

Answer 22

A deficiency of water over an extended time period, usually at least a season