The force that causes part of the crust to become shorter & thicker is …. tension compression shearing normal force 2 compression.

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Presentation transcript:

Earthquakes Review Game Chapter 6

The force that causes part of the crust to become shorter & thicker is …. tension compression shearing normal force 2 compression

When the hanging wall of a fault slips down with respect to the footwall, the result is a…. reverse fault syncline normal fault strike-slip fault 3. normal fault

True or False The largest waves on a seismogram are surface waves.

True or False An earthquake’s epicenter is located deep underground false: focus

Anticlines & synclines are two types of…... seismic waves faults folds aftershocks 3. folds

What is the point beneath Earth’s surface where the crust breaks & triggers an earthquake? focus epicenter fault magnitude 1. focus

The _______ is a rating system that estimates the total energy released by an earthquake. Richter scale moment magnitude scale Mercalli scale

Which process occurs when an earthquake’s shaking turns loose soil into mud? deformation liquefaction shearing base-isolation

Stress will build until an earthquake occurs if friction along a fault is…. changed to heat low high decreasing 3. high

To estimate the total energy released by an earthquake, a geologist should use the... Mercalli scale Richter scale epicenter scale moment magnitude scale 4. moment magnitude scale

True or False A base-isolated building design increases the amount of energy that reaches the building during an earthquake. false: reduces

True or False By drawing circles to show distances from 3 seismograph stations, geologists can locate the magnitude of an earthquake. false: epicenter

What process causes stress in Earth’ crust? compression, tension, shearing

What does the height of the jagged lines on a seismogram indicate? severity or closeness of an earthquake

When an earthquake occurs, seismic waves travel…. from P in all directions from R to S from S in all directions from Q to P 3. from s in all directions

The type of stress force that produces a strike-slip fault is... compression shearing tension liquefaction 2. shearing

A large area of flat land that is elevated high above sea level is known as a(n)___________. tsunami earthquake plateau epicenter

The point on Earth’s surface directly above an earthquake’s focus is called the ___________. middle vent epicenter fault 3. epicenter

Name four instruments that geologists use to monitor movements along faults & explain how each instrument works.

Why is it so difficult for geologists to predict earthquakes?

WAGE TIME! Describe the differences between the Mercalli scale, the Richter scale, and the moment magnitude scale.