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Earthquake-Volcano
| Term | Definition |
|---|---|
| earthquake | shaking that results from the movement of rock beneath Earth's surface |
| faults | a break or crack in Earth's lithosphere along which the rocks move |
| syncline | downward fold in the rock formed by compression in Earth's surface |
| tsunami | giant wave caused by an earthquake on the ocean floor |
| extinct | a volcano that is unlikely to erupt again |
| stress | a force that acts on rock to change its shape |
| strike-slip fault | type of fault where rock on either side move past each other sideways with little or no up and down movement |
| seismic wave | vibration that travels through Earth carrying the energy released through an earthquake |
| shearing | stress that pushes a mass of rock in opposite directions |
| Ring of Fire | a major belt of volcanoes that rims the Pacific Ocean |
| seismograph | a device that records movements caused by seismic waves as they move through Earth |
| hot spot | area where magma from deep within the mantle melts through the crust above it |
| compression | stress that squeezes rock until it folds or breaks |
| aftershock | earthquake that occurs after a larger earthquake in the same area |
| active | volcano that is erupting or has shown signs of erupting in the near future |
| tension | stress that stretches rock so that it becomes thinner in the middle |
| anticline | an upward fold in rock formed by compression of Earth's crust |
| dormant | a volcano that does not show signs of erupting in the near future |
| normal fault | type of fault where the hanging wall slides downward; caused by tension in the crust. |
| reverse fault | type of fault where the hanging wall slides upward; caused by compression in the crust |