Intro: What is an earthquake?. Remember Plate Tectonics – Peeled Orange – Curst of earth is like orange peel and can move around. (1). Intro: What is an earthquake?.
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9.0 — Causes complete devastation and large-scale loss of life.
8.0 — Very few buildings stay up. Bridges fall down. Underground pipes burst. Railroad rails bend. Large rocks move. Smaller objects are tossed into the air. Some objects are swallowed up by the earth.
7.0 — It is hard to keep your balance. The ground cracks. Roads shake. Weak buildings fall down. Other buildings are badly damaged.
6.0 — Pictures can fall off walls. Furniture moves. In some buildings, walls may crack.
One of the most powerful earthquakes ever recorded struck on Friday 11 March off the north eastern coast of Japan. It caused widespread loss of life and severe damage. The earthquake also triggered a tsunami, a destructive wave of water that washed away everything in its path - homes, buildings, vehicles and people.