Earthquakes are caused by the movement of tectonic plates. Earthquakes in Wellington.

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Earthquakes are caused by the movement of tectonic plates. Earthquakes in Wellington

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Transcript of Earthquakes are caused by the movement of tectonic plates. Earthquakes in Wellington.

Page 1: Earthquakes are caused by the movement of tectonic plates. Earthquakes in Wellington.

Earthquakes are caused by themovement of tectonic plates.

Earthquakes in Wellington

Page 2: Earthquakes are caused by the movement of tectonic plates. Earthquakes in Wellington.

What are Tectonic PlatesThis is an image of the earth's different layers.●Inner core

●Outer core

●Lower mantle

●Transition region

●Shallow mantle*

●Crust and Lithosphere

*The shallow mantle is divided into parts these parts are the tectonic plates

Page 3: Earthquakes are caused by the movement of tectonic plates. Earthquakes in Wellington.

Tectonic Boundaries

Page 4: Earthquakes are caused by the movement of tectonic plates. Earthquakes in Wellington.

How Earthquakes Occur

Australian Pacific

● Two plates such as the Pacific and Australian pushing towards each other create tension causing one of the plates to crack.

● Earthquakes happen in these faults because it is weaker at that point so it releases the tension there. The result, earthquakes.

Page 5: Earthquakes are caused by the movement of tectonic plates. Earthquakes in Wellington.

NZ Plate Boundaries

Plate edge

Page 6: Earthquakes are caused by the movement of tectonic plates. Earthquakes in Wellington.

Wellington/ Wairarapa faults

Australian plate

Pacific plate(sinking)

Page 7: Earthquakes are caused by the movement of tectonic plates. Earthquakes in Wellington.

Earthquakes on Richter scale

Location Magnitude DateEdgecumbe 6.6 1984San Francisco 7.8 19061855 Wairarapa 8.2 1855Sumatra 9.3 2004

Some earthquakes in the last 151 years

Page 8: Earthquakes are caused by the movement of tectonic plates. Earthquakes in Wellington.

Earthquake Energies Compared

Edgecumbe San Francisco 1855 Wairarapa

Sumatra0

100

200

300

400

500

600

Earthquake energy

Page 9: Earthquakes are caused by the movement of tectonic plates. Earthquakes in Wellington.

Edgecumbe EarthquakeCaused this damage

Page 10: Earthquakes are caused by the movement of tectonic plates. Earthquakes in Wellington.

Special thanks

Wikipidia.org

Wellington public libraries

Google.co.nz/images

KNS Libraries


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