1. TECTONIC HAZARDS
Volcanoes at HOTSPOTS

2. In this lesson you will discover :
(I) The reason why some volcanoes do not occur on plate boundaries. (II) What happens to volcanoes located over a hotspot as they are carried away by the tectonic plate.

3. Study the distribution of volcanoes shown on Figure 2.
Where is Kilauea located?
Kilauea is located in the middle of the Pacific Ocean far from plate boundaries.
2 minutes

4. Extinct volcanoes
Underwater volcano

5. Why?
You are going to watch a short video on the formation of hotspot volcanoes. 1- Study activity 1 on the Hotspots worksheet. 2- Watch and listen! 3- Watch the video again to complete your answers! 5- Discuss your answers with the student seated beside you.
10 minutes

6. A few key words to help you
VIDEO
Stationary: which doesn’t move.
Motion=movement
Intrusion:  Magma slowly pushes up from deep within the earth into any cracks or spaces it can find.
Mantle Plume: A column of hot rock rising inside the mantle
Solid part of the mantle
Semi-molten part of the mantle (magma)
An extinct volcano is not expected to erupt again.

7. Time to share your answers

8. active
boundaries
chain
changes
direction
erosion
erupts
extinct
hot
interior
melts
moves
new
plume
seamounts
stationary
underwater
upwards

9. Figure for activity 2