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Eathquake SA1
Eathquake definition
Term | Definition |
---|---|
Focus | Point where earthquake begins. |
Epicentre | The point on the earths surface directly above the focus. |
Transform boundary | When two plates slide across each other. |
Divergent boundary's | When two plates move apart due to convection currents. |
Magnitude | A measure of an earthquake's strength, based on the wave motion and the energy released. |
Tsunami | A giant wave caused by an underwater earthquake. |
Richter scale | Magnitude of earthquake is measured on a Richter scale. |
Liquefaction | When clay and sands mix with groundwater during an earthquake. |
Seismology | Study of earthquakes. |
Subduction zone | Where one plate subducts under the other due to it being heavier. |
Earthquake | A sudden violent shaking of the ground, typically causing great destruction, as a result of movements within the earth's crust or volcanic action. |