Alaska earthquake of 1964, earthquake that occurred in south-central Alaska on March 27, 1964, with a moment magnitude of 9.2. It released at least twice as much energy as the San Francisco earthquake of 1906. The death toll was only 131 because of the low density of the state’s population, but property damage was high. The earthquake tilted an area of at least 46,442 square miles (120,000 square km). Landmasses were thrust up locally as high as 82 feet (25 metres) to the east of a line extending northeastward from Kodiak Island through the western part of Prince William Sound. To the west, land sank as much as 8 feet (2.5 metres). a.) What is the average amount of slip (D) from east to west of the fault line? b.) Compute the seismic moment in dyne-cm. c.) Determine the rupture strength of the earthquake in dyne/cm2
Alaska earthquake of 1964, earthquake that occurred in south-central Alaska on March 27, 1964, with a moment magnitude of 9.2. It released at least twice as much energy as the San Francisco earthquake of 1906. The death toll was only 131 because of the low density of the state’s population, but property damage was high. The earthquake tilted an area of at least 46,442 square miles (120,000 square km). Landmasses were thrust up locally as high as 82 feet (25 metres) to the east of a line extending northeastward from Kodiak Island through the western part of Prince William Sound. To the west, land sank as much as 8 feet (2.5 metres).
a.) What is the average amount of slip (D) from east to west of the fault line?
b.) Compute the seismic moment in dyne-cm.
c.) Determine the rupture strength of the earthquake in dyne/cm2.
Step by step
Solved in 2 steps
