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| Term | Definition |
|---|---|
| tectonic plates | the two sub layers of the earths crust. |
| tremor | a tremor is a shaking in a person or earth |
| epicentre | the epicenter is the central location of the earthquake,point of land right above where an earthquake begins. |
| core | the central, innermost, or most essential part of anything. |
| crust | the outer layer made out of rock. |
| mantle | the third layer of the earth that is liquid |
| faultline | A line on a rock surface. |
| seismograph | an instrument that measures and records details of earthquakes. |
| Richter scale | measures how strong a earthquake is. |
| Mercalli scale | a scale of earthquake intensity. |
| molten | made by melting and casting. |
| primary waves | a wave that travels through the interior of the earth and is usually the first wave to be recorded by a seismograph. |
| secondary waves | a wave that travels through the earth and is usually the second wave to reach a seismograph. |
| surface waves | a seismic wave that travels along or parallel to the earth's surface |
| liquefaction | earthquake shakes the ground, water rises from the ground and turns the ground into liquid. |
| primary effects | a seismic wave that travels along or parallel to the earth's surface. |
| secondary effects | happens after an event. |
| seismic | relating to earthquakes or other vibrations of the earth and its crust. |
| benefits | something that might had been good about a tsunami, earthquake, volcano and land slide |
| paving | a surface made up of flat stones laid in a patter. |
| resistant | something that is stable, strong and flexible. |
| hemisphere | half of the earth. |
| continent | any of the world's main places. |