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Definition
| The total forcve acting on crustal rocks per unit of area |
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Definition
| deforemation of material in responce to stress |
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Definition
causes materials to bend and stretch
less stretch = less deformation |
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Definition
| permanent deformation caused by strain when stress exceeds a certain value |
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Term
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Definition
fracture or system of fractures in Earth's crust thjat occurs when stress is applied too quickly or stress is too great
-reverse fault
-strike strip fault
-normal fault |
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Term
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Definition
| the vibrations of the ground during an earthquake |
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Definition
| Seismic wave that squeezes and pushes rocks in the same direction that the wave travels, known as a P-wave |
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Definition
| Seismic wave that causes rock particles to move at right angles to the direction of the wave, known as S-wave |
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Definition
| point of intial fault rupture where earthquakes originate that usually lies at least several kilometers beneath Earth's surface |
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Definition
| point in Earth's surface directly above the focus of an earthquake |
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Definition
| Instrument used to measure horizontal or verticle motion during an earthquake |
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Definition
| record produced by a seismometer that can provide individual tracking of each type of seismic wave |
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Definition
| numerical rating system used to measure the amount of energy released during an earthquake based of the readings from the seismogram |
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Definition
| largest seismic waves that are produced during an earthquake |
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Definition
| the height of the largest seismic wave |
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Definition
| a rating scale that measures the energy released by an earthquake |
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Term
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Definition
rates the tpes of damage and other effect of an earthquake as noted by observers during and after its occurrence
(based of observers) |
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