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12 Cards in this Set
- Front
- Back
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Which tectonic plate has the most earthquake activity?
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Pacific Plate
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How much greater would the seismic wave in an earthquake that measured an 8 on the Richter scale be than those of an earthquake that measured that measured a four?
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10,000
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How does a tsunami form?
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The crust shifts from an earthquake and starts a wave that as it travels will gain speed and momentum and form a tidal wave or "tsunami"
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Explain why fires often destroy cities after earthquakes.
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Gas lines or water manes will break and if power lines break or any other sort of spark breaks out than it can cause a fire and often does.
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P (Primary) waves
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The fastest waves that travel through solids, liquids, and gases
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S (Secondary) waves
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The second fastest waves that can only travel through solids or semi-solids.
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Richter Scale
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The scale used to measure the power or force of an earthquake on a scale from 1-12.
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Focus
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The exact spot in the earth where the earthquake actually started
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Seismograph
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The tool used to measure the activity of an earthquake
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Epicenter
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The point in the earths crust where the earthquake occured over
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Mercalli Scale
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A tool used to measure the effect an earthquake had based on eyewitness accounts
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Aftershock
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The second wave of seismic activity that occurs after the initial quake.
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