EducTech

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Transcript of EducTech

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Earthquake

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What is an Earthquake?

Also known as quake, tremor or temblor

It is a sudden release of energy in the Earth's crust that creates seismic waves.

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Seismic Activity

Also known as seismicity or seismism.

It is the frequency, type and size of an earthquake experienced over a period of time.

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Seismometers

Instrument used to measure an earthquake.

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Fault is a planar fracture or discontinuity

in a volume of rock, across which there has been significant displacement along the fractures

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Epicenter is the point on the Earth's surface

that is directly above the hypocenter or focus, the point where an earthquake originates

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What causes an earthquake?

Rupture of geological faults Volcanic activity Landslides Mine blasts Nuclear tests

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What are the effects of an earthquake?

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What are the effects of an earthquake?

Shaking and ground rupture Landslides and avalanches Fires Soil liquefaction Tsunami Floods Human impacts

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How to survive an earthquake?

Prepare Be calm

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How to survive an earthquake?