1) Restless Earth

On this page you can find all the information you need to help you revise the section of work.  At the bottom of the page are some key words and a list of things you should know having studied this Unit.  This will be particularly useful when you come to revise and help you target areas that you may be unsure on.  There are also some links to useful website and at the bottom there are some articlaes and resources you can download to aid your revision.
Useful Links

GCSE Bitesize Revision Site – Plate Tectonics Section



Animations of different types of plate boundaries:



The Disaster Management Cycle:



Case Study of the Kobe Earthquake: 



Case Study of Loma Prieta Earthquake: 

        BBC On this day: 


        Wikipedia Page:  



Case Study of Montserrat Volcanic Eruption:



Animated Guide to Earthquakes



Animated Guide to Volcanoes


Key Words


Asthenosphere – the upper part of the earth’s matle, where the rocks are more fluid.


Collision plate boundary – a tectonic margin at which two continental plates come together.


Conservative plate boundary – where two tectonic plates slide past each other.


Constructive plate boundary – tectonic plate margin where rising magma adds new material to the diverging plates.


Continental crust – the part of the crust dominated by less dense granitic rocks.


Convection currents - circulating movements of magma in the mantle caused by heat from the core.


Core – the central part of the earth, consisting of a solid inner core and a more fluid outer core, mostly composed of iron and nickel.


Destructive plate boundary – tectonic plate margins where oceanic plate is subducted.


Evacuation – the removal of people from an area, generally in an attempt to avoid a threatened disaster (or escape an actual one)


Long term planning – planning that looks beyond immediate costs and benefits by exploring impacts in the future.


Magnitude – the size of something.


Oceanic crust – the part of the crust dominated by denser basaltic rocks.


Plate margins – the boundary between two tectonic plates.


Prediction – the forecasting of future change.


Preparation – the process of getting ready for an event.


Response – the way in which people react to a situation.


Short term emergency relief – help and aid provide to an area to prevent immediate loss of life because of shortage in basics, such as food, water and shelter.


Tectonic hazards - threats posed by earthquakes, volcanoes and other events triggered by coastal processes.


At the end of this unit you should...


- Know the difference between oceanic and continental plates, and how and why they move.

- Know the different layers of the Earth’s interior and how they differ.
- Know why the asthenosphere is an important part of the mantle.
- Know how convection in the mantle drives plate tectonic motion.

- Know that there are different types of plate margins.

- Know how new oceanic crust forms at constructive plate margins.
- Know how oceanic crust is subducted at destructive plate margins.

- Know why earthquakes occur along conservative plate margins.

- Know why fold mountains form in collision zones.

- Know how destructive collision margin earthquakes can be.

- Be able to explain the global pattern of earthquakes and volcanoes.

- Know how shield and composite volcanoes form from different types of magma.


- Know the difference between the VEI, Richter and Mercalli scales of measuring hazards.
- Know the difference between primary and secondary impacts.
- Know how earthquakes and volcanoes can be planned for and even predicted.
- Know the different types of hazard response, both short and long term.
Case Studies:
- Detailed causes and impacts for a LEDC MEDC earthquake.

- Detailed causes and impacts for a LEDC and MEDC volcanic eruptions.


Luke Kemish,
20 Sep 2010, 04:21
Luke Kemish,
20 Sep 2010, 04:20
Luke Kemish,
24 Feb 2010, 09:37
Luke Kemish,
6 Feb 2010, 01:36
Luke Kemish,
24 Feb 2010, 10:33
Luke Kemish,
25 Feb 2010, 03:00
Luke Kemish,
25 Feb 2010, 03:00