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13 Cards in this Set
- Front
- Back
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stress
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forces acting on a material, exceeds the strength of the rock involved
three types |
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compression
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decreases volume of material
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tension
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pulls a material apart
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shear
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causes a material to twist
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strain
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deformation of materials due to stress
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fault
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failure dues to stress breaks
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here
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h
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amount of energy released during an earthquake
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magnitude
32 fold increase ex: 8 is 1000 times bigger than 6 |
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Richter scale
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based on size of the largest sesmic waves
scale factor of ten ex: 8 100 times bigger than 6 |
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moment magnitude scale
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size of fault rupture
Amount of movement rocks stiffness from the size of several secmic waves |
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damn
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fff
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