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

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Presentation transcript:

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

What are Tectonic Plates This 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

Tectonic Boundaries

How Earthquakes Occur AustralianPacific ● 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.

NZ Plate Boundaries Plate edge

Wellington/ Wairarapa faults Australian plate Pacific plate (sinking)

Earthquakes on Richter scale Some earthquakes in the last 151 years

Earthquake Energies Compared

Edgecumbe Earthquake Caused this damage

Special thanks Wikipidia.org Wellington public libraries Google.co.nz/images KNS Libraries

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