Chapter 7 - Paragraph 2 - lesson 3

• Aardrijkskunde
• Middelbare school
• havo, vwo
• Leerjaar 1

Today

• Recap of paragraph 1.
• Start on paragraph 2
• Introduction to tsunamis 

A volcano is formed by

1. Convergent movement
2. Transform movement
3. Divergent movement
4. Subduction

An earthquake happens when

1. Two plates bump into eachother.
2. The pressurse between two plates is too high.
3. When one plate dives under the other.

When two plates are moving towards eachother we call this.

1. Convergence
2. Divergence
3. Transform
4. Subduction

When two plates are moving away from eachother we call this.

1. Convergence
2. Divergence
3. Transform
4. Subduction

This happens when a continental and an oceanic plate move towards eachother.

1. Convergence
2. Divergence
3. Transform
4. Subduction

Tsunamis

Write down in your glossary:

Tsunami: Huge tidal wave, that floods the coast. 

En: to flood. 

Nl: overstromen

Tsunami

Sendai Tsunami

March 2011: Sendai Quake. 

• Earthquake happened 130km off the coast of Japan. (seaquake)
• The force of the earthquake measured 8.9 on the Richter Scale
• The ocean floor was lifter, and then pushed down again, causing a huge wave.

01:27

What is the difference in cause (oorzaak/ontstaan) of a tsunami opposed to (in tegenstelling tot) a normal wave.

02:04

Why do tsunamis grow larger as they get closer to the coast?

Homework 

Finish exercise 1,2 and 3 on page 45 of workbook b

Next class: 

- consequences of an earthquake