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17 Cards in this Set
- Front
- Back
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focus |
the place inside the earth where the earthquake starts |
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epicenter |
the spot on land directly above the focus |
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seismograph
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an instrument that detects and measure earthquakes |
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seismogram |
a paper record of an earthquake event |
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the richter scale |
measures the magnitude of and earthquake |
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seismic waves |
vibrations released during an earthquake |
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primary waves |
the fastest moving seism waves, least destructive, travels through solids, liquids, and gases first wave recorded |
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secondary waves |
the seismic wave that is recorded second , and causes a little more damage than the primary waves |
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surface waves |
the seismic waves that cause the most damage, and are the slowest moving waves, and third wave recorded |
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ring of fire |
the major earthquake and volcano zone in the world is the around pacific ocean |
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transform boundaries |
were earthquakes occur |
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strike-slip |
fault caused when two plates scrapecalongside one another |
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tsunami |
a huge wave caused by an underwater earthquake |
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normal fault |
rocks are pulled apart at this fault |
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convection current |
warmer matter rises, cooler matter sinks |
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the Mercalli scale |
measures earthquake damage using roman numerals |
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Liquefaction |
Soil acts more like liquid |
