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Earth's Structure Layers Quiz

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Questions and Answers

What is the difference between earthquake magnitude and intensity?

Magnitude is a measure of how an earthquake feels to humans, while intensity describes the size of the seismic waves.

Magnitude is a qualitative measure of the effects of an earthquake, while intensity is a quantitative measure of the size of an earthquake.

Magnitude is a quantitative measure of the size of an earthquake, while intensity is a qualitative measure of the effects at a particular location. (correct)

Magnitude is based on observed ground motion characteristics, while intensity reflects the destruction caused by the earthquake.

What type of ground movements are commonly observed during an earthquake?

Birds fly in confusion.

Rock formations are observed to change color.

Landslides and liquefaction with lateral spreadings occur. (correct)

Trees sway gently in the wind.

What happens to man-made structures during a severe earthquake?

They are slightly tilted but generally remain intact.

They are toppled or destroyed. (correct)

They become flexible and absorb the seismic waves.

They are reinforced and become stronger.

What effect does liquefaction have on the ground during an earthquake?

The ground is distorted into undulations. Signup and view all the answers

How do rivers behave during an earthquake?

River water splashes violently over dikes and banks. Signup and view all the answers

What happens to trees during a significant earthquake event?

Many trees are toppled, broken, and uprooted. Signup and view all the answers

How are utility posts, towers, and monuments affected by earthquakes?

They are tilted, toppled, or broken. Signup and view all the answers

What is the impact of massive landslides during an earthquake?

Large-scale subsidence and uplifting of landforms occur Signup and view all the answers

How does water sewer infrastructure get affected by earthquakes?

Water sewer pipes are bent, twisted, or broken Signup and view all the answers

What commonly happens to boulders during an earthquake event?

Boulders are commonly thrown out Signup and view all the answers