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TAKE A PIECE OF PAPER, AND MARK OFF THE DIFFERENCE IN ARRIVAL TIME

Aim: P and S waves Open ESRT to page 11 and answer the following How long does it take an S wave to travel 4,400 km? . How long does it take a P wave to travel 3,800 km? How far does a p wave travel in 3 minutes and 20 seconds? How about the S wave? .

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TAKE A PIECE OF PAPER, AND MARK OFF THE DIFFERENCE IN ARRIVAL TIME

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  1. Aim: P and S wavesOpen ESRT to page 11 and answer the followingHow long does it take an S wave to travel 4,400 km?

  2. How long does it take a P wave to travel 3,800 km?How far does a p wave travel in 3 minutes and 20 seconds? How about the S wave?

  3. The time difference between P and S waves is 4 minutes and 10 seconds, how far away is the Earthquake?

  4. TAKE A PIECE OF PAPER, AND MARK OFF THE DIFFERENCE IN ARRIVAL TIME 4:10 2800Km

  5. MOVE THE PAPER UNTIL THE TWO TICK MARKS LINE UP WITH THE P AND S CURVES WHEN TICK MARKS LINE UP, GO STRAIGHT DOWN AND READ THE EPICENTER DISTANCE EPICENTER DISTANCE OF 2800 KM

  6. An Earthquake occurred 4,600 km away. What is the time difference between P and S waves?

  7. A seismic recording station recorded the first P wave at 9:44:20, and The first S wave at 9:49:40. How far away is the Earthquake?

  8. P wave arrival time: 2:20:20S wave arrival time: 2:27:20What is the time difference, and how far away is the Earthquake?

  9. According to the seismogram below, the P wave arrived at 22:21:30, while the S wave arrived at 22:30:50. What is the distance to the earthquake epicenter?

  10. Seismic station A is located 5,400 kilometers from the epicenter of the earthquake. How much time would it take for the first S-wave produced by this earthquake to reach seismic station A?

  11. A seismic recording station received p and s waves 6 minutes and 30 seconds apart. How far away is the earthquake epicenter?

  12. A p wave arrived at 4:17:30 while the S wave arrived at 4:19:20What is the distance to the epicenter?

  13. What is the distance to the earthquake epicenter?

  14. What is the distance?

  15. A seismic station recorded the arrival of the first S-wave at 10:10:10 p.m. from an earthquake that occurred 1,600 km away. What time was it at the station when the earthquake occurred?

  16. P wave = 7:29:30S wave = 7:33:20Distance:

  17. An earthquakes S-wave traveled 7,200km, and arrived at a seismic station at 4:30:00. At approximately what time did the earthquake occur?

  18. What happens to seismic waves as they travel through the Earth?

  19. S-Waves can not travel through the LIQUID outer core. Causes shadow zones on earth. (zones where waves are not received)

  20. Seismic waves refract as they pass through materials with different densities

  21. Refraction

  22. Seismic waves travel faster through denser materials

  23. How many seismic stations are needed to find the EXACT location of an earthquake?

  24. An earthquake P wave arrived in Seattle at 1:29:20, while the S wave arrived at 1:34:50. What is the distance to the Epicenter?

  25. Find the kilometer scale on the lower left part of the page and make a small but dark spot on the 3,900 km dash

  26. Using your drawing compass, Place the center of the pivoting circle on the 0 (zero marker) on the kilometer scale, and extend the slide out so that one of the small openings is located over the 3,900 km dash and lock it in place

  27. Once it is locked, carefully place the pivoting circle on the DOT for Seattle, and place a sharp pencil in the correct opening and carefully draw a circle. (Do not worry if it goes off the page.

  28. Terre Haute:S wave – 1:16:30P wave – 1:14:20______________________________Memphis:S wave – 1:17:50P wave – 1:15:10

  29. In order to pinpoint the exact location of an earthquake, you need information from THREE seismic stations

  30. http://www.youtube.com/watch?v=CtBXTvtFaCU&NR=1&feature=fvwp http://www.youtube.com/watch?v=A7nAvY_57vo http://www.youtube.com/watch?v=jkTXgAKHOE0 http://www.youtube.com/watch?v=FW-TkpvKPl0 http://www.youtube.com/watch?v=yJPS4lokxtw&feature=related

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