Problem 15
Explain the relationship between worldwide earthquake distribution and tectonic boundaries.
Problem 15
The 1960 earthquake in the Pacific Ocean off the coast of Chile caused damage and loss of life in Chile, Hawaii, Japan, and other areas along the Pacific Ocean border. How could this earthquake do so much damage to areas thousands of kilometers from its epicenter?
Problem 16
The three types of faults are normal faults, reverse faults, and strike-slip faults. Draw each type of fault including arrows that show which way the rocks move.
Problem 17
Describe how a person should prepare for an earthquake and how a person should react if an earthquake occurs.
Problem 18
Why it is incorrect to call a tsunami a tidal wave.
Problem 19
Which is likely to be more stable during an earthquake-a single-story woodframe house or a brick building. Explain.
Problem 20
Use an atlas and a metric rule to answer the following question. Primary waves travel at about \(6 \mathrm{~km} / \mathrm{s}\) in continental crust. How long would it take a primary wave to travel from San Francisco, California, to Reno, Nevada?
Problem 21
Describe what happens to S-waves when they contact Earth's outer core. Decribe what happens to P-waves when they reach Earth's outer core. What is the shadow zone?
Problem 23
An increase of one on the Richter scale corresponds to an increase of 10 in the size of the largest wave on a seismogram. How many times larger is the largest wave of a Richter magnitude-6 earthquake than a Richter magnitude-3 earthquake?
Problem 24
An underwater earthquake produces a tsunami 1,500 km away from Hawaii. If the tsunami travels at \(600 \mathrm{~km} / \mathrm{h}\), how long will it take to reach Hawaii?
