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Definition
| The pocket beneath a volcano where magma collects |
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| A long tube through which magma moves from then magma chamber to Earth's surface |
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| The opening through which molten rock and gas leave a volcano |
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| A bowl-shaped area that forms around a volcano centrel opening |
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| A volcano that is not currently active, but that may become active in the future. |
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| A volcano that is no longer active and is unlikely to erupt again. |
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Definition
| A fountain of water and steam that builds up pressure underground and erupts at regular intervals |
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Definition
| A force that acts on rock to change it's shape or volume |
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Definition
| Stress that stretches rock so that it becomes thinner in the middle. |
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| Stress that squeezes rock until it folds or breaks. |
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Definition
| Stress that pushes masses of rock in opposite directions, in a sideways movement |
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| A break or crack in Earth's lithosphere along which the rocks move. |
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| The shaking that results from the movement of rock beneath Earth's surface |
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Definition
| A landform that has high elevation and more or less level surface |
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Definition
| The point beneath the earths surface where rock breaks under stress and causes an earthquake |
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| The point on earth's surface directly above an earthquakes focus. |
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Definition
| waves prodcuded by an earthquake |
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Definition
| a scale of earthquake force |
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Definition
| a machine that records sesmic waves |
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