Suppose earthquake A registers two more points on the Richter scale than earthquake B. a. How are their corresponding intensities related? b. How are their released energies related?
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- The magnitude M of an earthquake is given. a. Find the earthquake intensity I in terms of the zero-level earthquake intensity lo- b. Find the energy released by the earthquake. M = 7.3A seismic survey is conducted in a region with two layers. The top layer is shale, with density 2500 kg/m3, and seismic velocity of 2900m/s, and the bottom layer is sandstone, with a density of 2100 kg/m3, and a seismic velocity of 3000m/s. The reflection coefficient will bea. Positiveb. Negativec. Zerod. Not enough informationK Use the earthquake magnitude scale to answer the following question. Compare the energy of a magnitude 8 earthquake to an explosive device that released 14 x 100 joules of energy. 18 The explosive device releases about times as much energy. (Type a whole number.) w an example Get more help - Clear all Check answer
- On July 13, 1986, the strongest earthquake known to strike San Diego County registered 5.4 on the Richter scale. It was centered off the coast of Oceanside on the Coronado Bank Fault. a) Determine the amount of energy released in ergs and b) Joules.7. For a reflection seismic survey, where the subsurface has an average P-wave velocity of 1000m/s and we use a 10ms seismic wavelet, the best resolution we could obtain is? а. 1 m b. 2.5 m с. 5m d. 10 m 8. Seismic migration can be best described as a. Converting the seismic section from time to depth b. Adjusting the reflection time based on the hyperbolic travel time c. Stacking the traces d. Putting seismic reflectors in their correct location 9. In a seismic survey, an air wave can be best described as a. A wave that travels through the air b. A compression wave that travels through the air in the pore spaces in the rock. c. A direct, compression wave that travels from the source to the geophones through the air. d. All of the above 10. A seismic survey is conducted in a region with two layers. The top layer is shale, with density 2500 kg/m3, and seismic velocity of 2900m/s, and the bottom layer is sandstone, with a density of 2100 kg/m3, and a seismic velocity of 3000m/s. The…8. The energy released đuring an earthquake can be calculated using the formula E(M) =(10'")“, where E is the energy in kWh (kilowatt hours) and M is the magnitude of the carthquake. a. The magnitude 9.5 earthquake in Southern Chile on May 22, 1960 is thought to be the strongest earthquake that has ever occurred. Use the formula above to caleulate the energy released during this earthquake. Express the answer in scientific notation, to the nearest tenth. b. An earthquake of magnitude 3 may not be felt or noticed by most people. Calculate the energy, to the nearest tenth, that is released during an earthquake of this strength. ( c. Compared to a magnitude 3 carthquake, how many times greater was the energy that was released during the 1960 earthquake in Chile? d. An earthquake that occurred in Central Canada in 2010 released approximately 30 000 000 kWh energy. Find the magnitude, to the nearest whole number, associated with this carthquake.
- 8. A 7.3-magnitude earthquake hit eastern Japan late Wednesday night,killing at least four people and injuring over 100 others, and cutting power to millions of homes. a) Determine the amount of energy released by the earthquake in ergs? b) How much energy was released in Joules?4) The Richter scale is used for measuring the magnitude of an earthquake. The Richter magnitude R is given by the model R = 0.67 log(0.37 E) + 1.46 Where E is the energy (in kilowatt-hours) released by the earthquake. An earthquake in Pakistan on June 8, 2007. released 132,372 kilowatt hours of energy, what was the earthquake's magnitude (to the nearest tenth)? a) 4.1 b) 4.3 d) 4.8 c) 4.6Q#5. Explain Snell’s law with respect to seismic waves. For figure 3. Find out θ2, θ3, θ4 and θ5, for the given velocity model.
- A11 Consider linear flow through a core length L with cross sectional area equal to A. Assume that flow through the core can be modeled as flow through ncapillary tubes of radius r and length L. Show that; k = 4.04 x 10^6 x Φ x r^2 where Φ denotes porosity, and k denotes permeability in Darcies.1. The unit angstrom , symbolized by Å , is named after Anders J. Angstrom. Giventhat 1Å = 0.1nm, what is 1Å in (a) cm (b) m and (c) mm2. How many seconds are there in 2.25 hours. 3. How many centimeters are in 190 pm.? 4. The density of mercury is 13.6 g/mL. Express this in kg/L . 5. How many drops of liquid are in a 0.005 L? ( Assume 20 drops = 1mL) 6. The masses of the five heaviest defensive linemen in a football team are asfollows : 141 000 g, 0.133 Mg, 1.28 x10 8 mg, 126 kg and 1.22 x 1011 ųg. What isthe average mass in grams of these players?1. Which of the following do you expect to be periodic? Explain why in each case. a) The rhythm of the human heart, at rest, over time. b) The number of passenger cars purchased annually in Ontario from 1990 to 2000. c) The rise and fall of sea levels created by low and high tide, respectively. d) The average monthly temperature in your community, recorded each month for five years.