Physical Science
11th Edition
ISBN: 9780077862626
Author: Bill Tillery, Stephanie J. Slater, Timothy F. Slater
Publisher: McGraw-Hill Education
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Chapter 18, Problem 3PEB
To determine
The time taken by South Atlantic Ocean to open up between Brazil and Mt. Cameroon.
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According to the infographic above a recent magnitude 7.7 Earthquake was recorded in Los Angeles 2016. Earthquakes represent a release of energy as a result of the earth's tectonic plates. a) Determine the amount of energy release in ergs. b) Determine the energy release in Joules. ( Hint use the earthquake formula M = 2/3 log (E/ 10^11.8); where M is the earthquake magnitude and E is the energy of the earthquake in ergs (recall 1 erg = 10^-7 Joules))
According to the infographic above, one of the largest earthquakes of this year 2021 was the magnitude 8.2 Earthquake in Alaska on 29 July 2021. Earthquakes represent a release of energy as a result of the earth's tectonic plates. a) Determine the amount of energy release in ergs. b) Determine the energy release in Joules. ( Hint use the earthquake formula M = 2/3 log (E/ 10^11.8); where M is the earthquake magnitude and E is the energy of the earthquake in ergs (recall 1 erg = 10^-7 Joules)). c) Using the earthquake magnitude scale below to qualitatively categorize (was it Minor, Light, Moderate, Strong, Major or Great) and describe the earthquake (what kind of damage is expected from a magnitude 7.1 earthquake)
According to the infographic above a recent magnitude 6.1 Earthquake was recorded. Earthquakes represent a release of energy as a result of the earth's tectonic plates. a) Determine the amount of energy release in ergs. b) Determine the energy release in Joules. ( Hint use the earthquake formula M = 2/3 log (E/ 10^11.8); where M is the earthquake magnitude and E is the energy of the earthquake in ergs (recall 1 erg = 10^-7 Joules)). c) Using the earthquake magnitude scale below to qualitatively categorize (was it Minor, Light, Moderate, Strong, Major or Great) and describe the earthquake (what kind of damage is expected from a magnitude 6.1 earthquake).
Chapter 18 Solutions
Physical Science
Ch. 18 - 1. The core of Earth is composed of
a. iron and...Ch. 18 - 2. The middle part of Earth's interior is
a....Ch. 18 - 3. The separation of materials that gave Earth its...Ch. 18 - 4. A vibration that moves through any part of...Ch. 18 - 5. The S-wave is a
a. longitudinal wave.
b....Ch. 18 - 6. Waves that occur where S- or P-waves reach the...Ch. 18 - 7. The three main areas of Earth’s interior are
a....Ch. 18 - 8. The boundary between the crust and the mantle...Ch. 18 - 9. The mantle is composed of
a. sulfides.
b....Ch. 18 - 10. Seismological studies suggests that the...
Ch. 18 - 11. Evidence from meteorite studies proposes that...Ch. 18 - 12. The layer in Earth where seismic waves sharply...Ch. 18 - 13. The layer that is broken up into plates that...Ch. 18 - 14. The name of the single large continent...Ch. 18 - 15. Records of the strength and directions of...Ch. 18 - 16. The chain of mountains found in the center of...Ch. 18 - 17. Long, deep, and narrow oceanic trenches are...Ch. 18 - 18. The theory that the lithosphere is composed of...Ch. 18 - 19. The plate boundary associated with the...Ch. 18 - 20. The movement of one plate under another plate...Ch. 18 - 21. Transform boundaries occur when
a. two plates...Ch. 18 - 22. What is the current theory about why the...Ch. 18 - 23. The seismic waves that cause the most damage...Ch. 18 - 24. Earth’s mantle has a chemical composition that...Ch. 18 - 25. From seismological data, Earth’s shadow zone...Ch. 18 - 26. The Mohorovicic discontinuity is a change in...Ch. 18 - 27. The oldest rocks are found in
a. continental...Ch. 18 - 28. The least dense rocks are found in
a....Ch. 18 - 29. The idea of seafloor spreading along the...Ch. 18 - 30. According to the plate tectonics theory,...Ch. 18 - 31. The presence of an oceanic trench, a chain of...Ch. 18 - 32. The presence of an oceanic trench with shallow...Ch. 18 - 33. The ongoing occurrence of earthquakes without...Ch. 18 - 34. The evidence that Earth's core is part liquid...Ch. 18 - 35. The surfaces of early planets in our solar...Ch. 18 - 36. The early Earth’s core is thought to have...Ch. 18 - 37. Indirect evidence that supports the theory of...Ch. 18 - 38. The oceanic crust is
a. thicker than the...Ch. 18 - 39. Seismic waves that do not travel through...Ch. 18 - 40. The fastest seismic wave is the
a. P-wave.
b....Ch. 18 - 41. Information about the composition and nature...Ch. 18 - 42. Primary information about the nature of the...Ch. 18 - 43. The asthenosphere is not defined as
a....Ch. 18 - 44. Earth’s magnetic field is thought to be...Ch. 18 - 45. Studies of the Mid-Atlantic Ridge provided...Ch. 18 - 46. Evidence that supports seafloor spreading does...Ch. 18 - 47. A geologic feature that was produced by...Ch. 18 - 48. Which type of plate boundary accounts for the...Ch. 18 - 49. Which type of plate boundary was responsible...Ch. 18 - 50. A famous transform boundary in the United...Ch. 18 - 51. Plate movement is measured by
a. reflected...Ch. 18 - 52. Islands that form when melted subducted...Ch. 18 - 1. Describe one theory of how Earth came to have a...Ch. 18 - 2. Briefly describe the internal composition and...Ch. 18 - 3. What is the asthenosphere? Why is it important...Ch. 18 - 4. Describe the parts of Earth included in the (a)...Ch. 18 - 5. What is continental drift? How is it different...Ch. 18 - 6. Rocks, sediments, and fossils around an oceanic...Ch. 18 - 7. Describe the origin of the magnetic strip...Ch. 18 - 8. Explain why ancient rocks are not found on the...Ch. 18 - 9. Describe the three major types of plate...Ch. 18 - 10. What is an island arc? Where are they found?...Ch. 18 -
11. Briefly describe a model that explains how...Ch. 18 - 12. Briefly describe the theory of plate tectonics...Ch. 18 - 13. What is an oceanic trench? What is the...Ch. 18 - 14. Describe the probable source of all the...Ch. 18 - 15. The northwestern coast of the United States...Ch. 18 - 16. Explain how the crust of Earth is involved in...Ch. 18 - 1. Why are there no active volcanoes in the...Ch. 18 - 2. Describe cycles that occur on Earth's surface...Ch. 18 - 3. Discuss evidence that would explain why plate...Ch. 18 - 4. Analyze why you would expect most earthquakes...Ch. 18 - 1. The rate at which the temperature increases...Ch. 18 - 2. Based on a geothermal gradient of 15°C/km, what...Ch. 18 - Prob. 3PEBCh. 18 - 4. What is the pressure, in N/m2, at the depth of...Ch. 18 - 5. What is the pressure, in N/m2, at a depth of 75...Ch. 18 - 6. What is the pressure, in N/m2, at the base of...Ch. 18 - 7. Wood floating in water can demonstrate how the...Ch. 18 - 8. A teacher would like to demonstrate the...Ch. 18 - 9. A survey of a mid-oceanic ridge determined the...Ch. 18 - 10. GPS stations on two separate plates have...Ch. 18 - 11. What is the geothermal gradient along a...Ch. 18 - 12. What are the subduction direction and slope of...Ch. 18 - 13. What are the subduction direction and slope,...Ch. 18 - 14. Earthquake data from a subduction zone are...Ch. 18 - 15. The North American Plate is moving west at a...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- What is the Mid-Atlantic Ridge?arrow_forwardIf you wanted to live where the chances of a destructive earthquake were small, would you pick a location near a fault zone, near a mid ocean ridge, near a subduction zone, or on a volcanic island such as Hawaii? What are the relative risks of earthquakes at each of these locations?arrow_forwardEurope and North America are moving apart by about 5 m per century. As the continents separate, new ocean floor is created along the mid-Atlantic Rift. If the rift is 5000 km long, what is the total area of new ocean floor created in the Atlantic each century? (Remember that 1km=1000m .)arrow_forward
- HEIGHT OF A CONTINENT ABOVE THE MANTLE. In the figure below, a simple model considers a continent as a block (density = 2,800 kg/m^3) floating in the mantle (density = 3,300 kg/m3). Assuming the continent is 35 km thick (the average thickness of the Earth's crust), estimate the height (in km) of the continent above the surrounding mantle. Continent (density = 2800 kg/m3) mg Mantle rock (density = 3300 kg/m³) 5.3. 7.4. 9.8 12. 17.arrow_forwardAccording to the infographic above a recent magnitude 6.1 Earthquake was recorded. Earthquakes represent a release of energy as a result of the earth's tectonic plates. a) Determine the amount of energy release in ergs. b) Determine the energy release in Joules. ( Hint use the earthquake formula M = 2/3 log (E/ 10^11.8); where M is the earthquake magnitude and E is the energy of the earthquake in ergs (recall 1 erg = 10^-7 Joules)arrow_forwardA recent magnitude 6.0 Earthquake was recorded. Earthquakes represent a release of energy as a result of the earth's tectonic plates. a) Determine the amount of energy released in ergs. b) Determine the energy release in Joules. ( Hint use the earthquake formula M = 2/3 log (E/ 10^11.8); where M is the earthquake magnitude and E is the energy of the earthquake in ergs (recall 1 erg = 10^-7 Joules)).arrow_forward
- According to the infographic above a recent magnitude 3.8 Earthquake was recorded in San Diego 2021. Earthquakes represent a release of energy as a result of the earth's tectonic plates. a) Determine the amount of energy release in ergs. b) Determine the energy release in Joules. ( Hint use the earthquake formula M = 2/3 log (E/ 10^11.8); where M is the earthquake magnitude and E is the energy of the earthquake in ergs (recall 1 erg = 10^-7 Joules)). c) Using the earthquake magnitude scale below to qualitatively categorize (was it Minor, Light, Moderate, Strong, Major or Great) and describe the earthquake (what kind of damage is expected from a magnitude 3.8 earthquake).arrow_forwardEarth's mass ia 6x10^24 kg and its radius is 6.4x10^6 m. What is the average mass density of Earth? The density of the rocks compromising Earth's outermost layer (its "crust") ranges from 2000 to 3500 kg/m ^3. Based on your answer, what can you conclude about the material deep inside Earth's interior?arrow_forwardThe average elevation of Arabian peninsula (freeboard) is f=400 m. Considering that the oceanic crust is h=5 km of thickness and the sea average depth is D= 3700 m. (pc=2700 kg/m3, po=3000 kg/m3, pm=3300 kg/m3 pw=1000 kg/m3) What is the thickness H of the continental crust. B. If the Musandam has an average elevation of 800 m. How much is the thickness below Musandam considering stacking of sedimentary layers and not erosion.arrow_forward
- The Richter Soale is a simple equation for measuring intensity of an earthquake, according to the formula R=log(I), where I is Intensity of an earthquake and Ris the Richter scale rating. The largest earthquake in the year 2006 was in the ocean that was recorded as an 8.3 on the Richter Scale. The most devastating earthquake was in a major city that registered 6.6 on the Richter Scale. How many times more intense was the quake in the ocean? a) The intensity of the 8.3 earthquake was: You can write it as a power of 10 b) The intensity of the 6.6 earthquake was: FYou can write it as a power of 10} c) The quake in the ocean was times more intense than the one in the city. (Round to 3 decimal places.)arrow_forwardIn the figure below, the earthquake occurred 7,100 km from the seismograph. Earthquake occurs 7,100 km away. First Pwaves arrive. First Swaves arrive. Mww 10 15 20 25 Time (minutes) How fast did the P waves travel in km/s? km/s How fast did the S waves travel (in km/s)? km/s How long (in seconds) did the P waves and the S waves take to travel 120 km from the epicenter? Assume the wave speeds are constant. P waves S waves Selsmic wave strengtharrow_forwardThe Richter scale measures seismic activity. Other measures of quake strength include the energy released by quakes. One of these other measures is given by the equation. Using this measure, find the relative strengths of the Chilean and the Haitian earthquakes. additonal info: Chile earthquake is 8.8 on the richter scale Haiti earthquake is 7 on the richter scalearrow_forward
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