Question 1

The structural layer of earth that is liquid is the ____________________.

Accepted Answer

The answer of The structural layer of earth that is...

Question 2

The increase of temperature with depth is known as the ____________________.

Accepted Answer

The answer of The increase of temperature with depth is...

Question 3

The term that best describes most tsunamis is ____________________.

Accepted Answer

The answer of The term that best describes most tsunamis...

Question 4

The number of seismograph records needed to locate the epicenter of an earthquake is ______.

Accepted Answer

The answer of The number of seismograph records needed to...

Question 5

The structural layer that the P- and S-wave low-velocity zone,in the upper part of the mantle,closely corresponds to is the ____________________.

Accepted Answer

The answer of The structural layer that the P- and...

Question 6

Seismology has produced a great amount of information about ____.

Accepted Answer

Seismology is the study of earthquakes and their effects, which has led to a better understanding of the mechanisms of plate tectonics, the physical and chemical state of Earth's interior, and the causes of mountain building. Therefore, all of the given choices are correct.

Question 7

Only 5 percent of all earthquakes occur within ____.

Accepted Answer

The interiors of plates and mid-oceanic ridges are areas where the majority of earthquakes do not occur. Only about 5 percent of all earthquakes occur in these regions, whereas the remaining 95 percent occur along plate boundaries, such as the Mediterranean-Asiatic Belt and Circum-Mediterranean Belt or along the passive margins of continents and mid-oceanic ridges. Shields of continents are not typically associated with significant seismic activity.

Question 8

The velocity of S-waves is ____________________ than that of P-waves.S-waves cannot pass through materials that are ____________________ or ____________________.

Accepted Answer

The answer of The velocity of S-waves is ____________________ than...

Question 9

The velocities of P- and S-waves are determined by these two properties of the material they are passing through: ____________________ and ____________________.

Accepted Answer

The answer of The velocities of P- and S-waves are...

Question 10

For every integer increase of magnitude on the Richter Scale,______ times more energy is released by the earthquake.

Accepted Answer

The answer of For every integer increase of magnitude on...

Question 11

If you could drill from the outer surface of Earth all the way to the center,you would pass through the major divisions of Earth,the ____________________,the ____________________,and finally the ____________________.

Accepted Answer

The answer of If you could drill from the outer...

Question 12

According to the elastic rebound theory,____.

Accepted Answer

The elastic rebound theory suggests that rocks will bend before they break, snap back into their original shape after faulting, and break when their capacity to store energy of deformation is exceeded.

Question 13

The focus of the most destructive earthquakes is almost always ____.

Accepted Answer

The focus of the most destructive earthquakes is almost always shallow (less than 70 km deep). Shallow earthquakes cause more damage because they release their energy closer to the Earth's surface where people and buildings are located.

Question 14

One of the strongest earthquakes ever recorded in North America was the intraplate quake known as the

Accepted Answer

The 1811 New Madrid, Missouri, earthquake is one of the strongest intraplate earthquakes recorded in North America, with a series of quakes that were felt over a large area.

Question 15

The energy used in seismic tomography is ____________________.

Accepted Answer

The answer of The energy used in seismic tomography is...

Question 16

The depth to the Mohorovicic discontinuity is ______ km beneath the continents and between ______ and ______ km beneath the seafloor.

Accepted Answer

The answer of The depth to the Mohorovicic discontinuity is...

Question 17

The two types of body waves are _______ and _______ waves.

Accepted Answer

Primary (P) and Secondary (S) waves are the two types of body waves that travel through the Earth's interior during an earthquake.

Question 18

The study of ancient earthquakes is known as ____________________.

Accepted Answer

The answer of The study of ancient earthquakes is known...

Question 19

The focal depth ranges for shallow focus,intermediate focus,and deep focus earthquakes,respectively is

Accepted Answer

Shallow focus earthquakes occur at depths less than 70 km, intermediate focus earthquakes occur at depths between 70 and 300 km, and deep focus earthquakes occur at depths greater than 300 km.

Question 20

The percentage of all earthquakes that occur along a plate boundary is nearly what?

Accepted Answer

The majority of earthquakes occur along plate boundaries, with the percentage estimated to be around 95%. This is due to the fact that most tectonic activity, such as subduction, collision, and spreading of plates, occurs at these boundaries.

Quiz 9: Earthquakes and Earth's Interior