T3- check understanding - earthquakes and volcanoes

• Aardrijkskunde
• WO
• Studiejaar 3

Actuality: Turkey's earthquake

Find GB80

https://earthquake.usgs.gov/earthquakes/map/?extent=35.49009,395.07476&extent=38.57642,401.50176

Endogenic forces	Exogenic forces
change it from the inside	change it from the outside
.

Wind

Earthquake

Water

Volcano

Tsunami

Ice

Erosion

Look at the image. It shows the rock cycle. Combine the numbers with the correct description of what can be found there.

Igneous rock

Metamorphic rock

Sedimentary rock

Weathering and erosion

Magma

1

2

3

4

5

Epicentre

Hypocentre

What is the difference between convergence and subduction?

Shield volcano

Hotspot

Trench

Convergent

Divergent

Strato volcano

Mid oceanic ridge

heavy earthquakes

Divergent plate boundary

Convergent plate boundary

Transform

plate boundary

Earthquake risk

Volcanism

Earthquake risk

Subduction

Midoceanic ridge

Himalaya mountain range

How does subduction cause volcanoes?

Three kinds of volcanoes

Stratovolcanoes: explosive eruptions and pyroclastic flows

Explosive eruption last week

Pyroclastic flow

Hot gases that rush down the slopes of a volcano at high speed during an eruption

                    NEXT SLIDE

How does a hotspot form?

1. Through heating of the earth's crust
2. Through magma rising in the earth's crust
3. Through plate movements
4. Through old lava flowing out of a volcano

At hotspot volcanoes we find...

1. divergence
2. convergence
3. no plate boundary

A hotspot usually is...

1. effusive eruption type, shield volcano
2. explosive eruption type, shield volcano
3. effusive eruption type, stratovolcano
4. explosive eruption type, stratovolcano

What is a famous hotspot?

1. Santorini, Greece
2. Krakatau, Indonesia
3. Vesuvius, Italy
4. Mauna Kea, Hawaii, US

Make a summary of unit 3.1 and 3.2 by answering the questions below

1: Describe and explain why Chile is hit so often by powerful earthquakes

2: Describe and explain subduction of an oceanic plate

3: Describe and explain the formation of the Andes

4: What happens when the Nazca plate slides under the South American plate?

5: What are the characteristics of explosive volcanism and stratovolcanoes

6: WHy are volcanoes sometimes located in the middle of plates?

Find: 1 famous earthquake (not historic) and 1 famous volcano and write the names and events below (5 min)

Find: 1 famous earthquake (not historic) and 1 famous volcanic eruption and write the names and year of the event below (5 min)