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During the lesson we will talk about the greatest earthquakes measured instrumentally: where did they occur, what were their effects and why such catastrophic phenomena occur in specific regions of the world. You will find out, how large were the shifts of rock masses and how long was the shifting of rocks during an earthquake.

The greatest earthquakes occur in the subduction zones, the places where the ocean plate penetrates the continental plate. Students will learn the mechanism of the great earthquakes and how they measure their magnitude.

Presenter: Grzegorz Lizurek