finding the epicenter of an earthquake. focus vs. epicenter
TRANSCRIPT
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FINDING THE EPICENTER OF AN EARTHQUAKE
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Focus vs. Epicenter
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Svaha (The other 5 second rule)
A general rule of thumb: For every 5 seconds of time between the lightning and the thunder the storm is about 1 mile away.
For example if you see the lightning and count to 10 and then hear the thunder the storm is about 2 miles away. (10 seconds ÷ 5 = 2 miles)
The P-Waves would be like the lightning because the P-Waves are faster and the S-Waves are like the thunder because the S-Waves are slower.
The longer the time interval between the P-Waves and the S-Waves the further away the epicenter.
Lightning and Thunder P-Waves and S-Waves
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Triangulation
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Safety Compass (1cm = 10 mm)
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The Loma Prieta Quake
Oct. 17, 1989 San Francisco Bay Area (California) Magnitude of 6.9 on the Richter Scale 63 casualties with thousands of
injuries Main shaking lasted 10-15 seconds What (specifically) most probably
caused this quake?
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Some major damage
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Game 3 of the World Series
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Helpful Hint for Number 4:
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Helpful Hint for Number 5:
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Helpful Hint for Number 6:
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Helpful Hint for Number 7: