Tectonic Hazards

Question 1

What are the four major layers of the Earth’s structure?

Answer 1

1. The Crust.
2. The Mantle.
3. Outer Core.
4. Inner Core.

Question 2

Which layer is thickest?

Answer 2

Mantle.

Question 3

Which two layers are entirely solid?

Answer 3

Crust and Inner Core.

Question 4

What are the two different types of crust?

Answer 4

Oceanic and Continental.

Question 5

Which type of crust is more dense? Why is this significant?

Answer 5

Oceanic, as it helps the boundaries work. (convergent, etc.)

Question 6

What is the name of the process that causes the Earth’s tectonic plates to move?

Answer 6

Convection Current.

Question 7

How many different types of plate boundary are there?

Answer 7

4.

Question 8

What direction do the plates move in at convergent plate boundaries?

Answer 8

Towards each other.

Question 9

True or False? Volcanoes occur at conservative plate boundaries.

Answer 9

False.

Question 10

Explain two characteristics of a shield volcano.

Answer 10

Much wider, taller.

Question 11

Explain two characteristics of a composite volcano.

Answer 11

Large volcanoes (many thousands of feet or meters tall) generally composed of lava flows, pyroclastic deposits, and mudflow (lahar) deposits, as well as lava domes.

Question 12

What is a hot-spot?

Answer 12

A small area with a high temperature.

Question 13

Complete the following sentences.

In an earthquake, the point of rupture - where the earthquake happens underground - is called the f_____. Shock waves radiate out from this point. The e_________ is the point directly above this on the Earth’s surface (where the earthquake is felt the most).

Answer 13

In an earthquake, the point of rupture - where the earthquake happens underground - is called the focus. Shock waves radiate out from this point. The epicentre is the point directly above this on the Earth’s surface (where the earthquake is felt the most).

Question 14

What does magnitude mean?

Answer 14

The stength.

Question 15

What is the name of the scale that earthquakes are measured on?

Answer 15

Richter Scale.

Question 16

What causes tsunamis?

Answer 16

An underwater disturbance usually associated with earthquakes occurring below or near the ocean.

Question 17

What was your developing country earthquake case study and when did it happen?

Answer 17

Haiti.

Question 18

a) Identify at least two primary and two secondary impacts for your developing country earthquake case study.

b) In your opinion, which was most significant - the primary or the secondary impacts?

Answer 18

A) i) Many people die, chaos Ensued.
A ) ii) Rebuilding the towns, 332 people still missing.

B) I think the primary, as that was the stuff that was straight off the bat as soon as it hit.

Question 19

Identify at least one immediate and one long-term response for your developing earthquake case study.

Answer 19

Search and Rescue team.

Long term recovery: The EU gave $330 million and the World Bank waived the countries debt repayments for 5 years. The Senegalese offered land in Senegal to any Haitians who wanted it! 6 months after the quake, 98% of the rubble remained un cleared, some still blocking vital access roads.