Savvas 8th Grade Chapter 4 Earthquakes Test

Last updated over 2 years ago
33 questions
1

In a normal fault, the part of the fault that lies below the other part is called the

1

Stress that pushes a mass of rock in two opposite directions is called

1

Which type of stress force produces reverse faults?

1

Which of the following can cause damage days or months after a large earthquake?

1

The point beneath Earth’s surface where rock breaks under stress and triggers an earthquake is called the

1

In a strike-slip fault, the rocks on either side of the fault slip past each other sideways with little

1

A fold in rock that bends upward into an arch is called a(n)

1

The type of seismic waves that arrive at the surface first and move by compressing and expanding the ground like an accordion are called

1

The rating system that estimates the total energy released by an earthquake is called the

1

A large area of flat land elevated high above sea level is called a

1

The Ring of Fire, where many earthquakes occur, is located around the rim of which ocean?

1

Which type of seismic wave causes the most destruction to property?

1

Which type of seismic wave can move through solid layers of the earth but not through the liquid outer core?

1

The scale, which is numbered 1-10, that measures the strength or magnitude of an earthquake.

1
A seismograph uses a _______ to record the drum's vibrations.
1
The stress force that pulls on the crust where two plates are moving apart is called
_______ .
1
The seismic waves that travel along Earth’s surface and produce the most severe ground
movements are called_______ .
1
The block of rock that lies above a fault is called the_______ .
1
Shearing creates _______faults, like the San Andreas fault in California.
1
_______ seismic stations are required to determine the epicenter of an earthquake?
1

An upward fold in a rock is called a plateau.

1

With the range of data available, geologists cannot predict exactly where and when earthquakes will occur.

1

The squeezing together of rocks by stress is called shearing.

1

In a strike-slip fault, the rocks on either side of the fault slip past each other sideways.

1

When an earthquake occurs, S waves are the first seismic waves to arrive at a given location.

2

Distinguish between the focus and the epicenter of an earthquake.

3

Explain in your own words what happens during an earthquake? (Include the words plate boundaries, fault, seismic waves, and scale on which it’s measured).

2

Use the illustration to answer questions 28-30.




Describe the rock layers shown in Diagram A and any forces acting on the rock.

2

Using the above diagram, contrast the plate movements that cause the stresses in Diagrams B and C.

2

Using the above diagram, will a normal fault result from the stresses being applied to the rock unit in Diagram D? Explain.

2

Explain how geologists use seismic waves to locate an earthquake's epicenter.

2

Describe how a seismograph works.

2

Describe the Modified Mercalli Scale. Explain why it is useful.