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Question 1 / 30

In earthquake terminology, how is a focus described?

Energy of an earthquake carried away from the epicenter.

The point beneath the Earth's surface where rock under stress breaks to cause an earthquake.

The point on the surface directly above the origin of the earthquake.

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Question 2 / 30

What are the different kinds of seismic waves?

Q, R, and S waves

R, S, and surface waves

P, S, and surface waves

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Question 3 / 30

How can the epicenter of an earthquake be characterized?

A measurement of an earthquake's magnitude and its strength based on seismic waves and movement.

The point on the Earth's surface directly above the focus.

The point beneath the Earth's surface where rock under stress breaks to cause an earthquake.

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Question 4 / 30

How does the energy of an earthquake travel through the Earth?

Seismic waves carry the energy of an earthquake away from the focus, through the Earth's interior, and across the surface.

Seismic waves carry the energy of an earthquake toward the focus, through the Earth's interior, and across the surface.

During an earthquake, seismic waves move toward the focus and epicenter then move out in all directions.

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Question 5 / 30

________ carry the energy of an earthquake away from the focus.

Mercalli waves

Richter waves

Seismic waves

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Question 6 / 30

When considering the three types of seismic waves, which waves move more slowly than their counterparts yet produce the most severe ground movements?

P waves

S waves

Surface waves

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Question 7 / 30

These type of waves compress and expand the ground like an accordion.

P waves

S waves

Surface waves

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Question 8 / 30

Which waves vibrate from side to side and up and down?

P waves

S waves

Surface waves

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Question 9 / 30

When P and S waves reach the surface of the Earth, some are transformed into surface waves.

True

False

I have no earthly idea.

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Question 10 / 30

What instrument is used to measure and record the vibrations of seismic waves?

Richter graph

Seismograph

Mercalli graph

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Question 11 / 30

An earthquake's ___________ is a measurement of its strength based on seismic waves and movement along faults.

Energy

Intensity

Magnitude

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Question 12 / 30

How many rating scales are used to measure earthquakes?

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Question 13 / 30

This rating scale rates earthquakes according to the size of seismic waves as measured by a seismograph.

Moment magnitude scale

Mercalli scale

Richter scale

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Question 14 / 30

What earthquake rating scale rates earthquakes by describing their effects on people, buildings, and the land surface in a given location?

Moment magnitude scale

Mercalli scale

Richter scale

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Question 15 / 30

This scale rates earthquakes by estimating the total energy released.

Moment magnitude scale

Mercalli scale

Richter scale

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Question 16 / 30

Which earthquake rating scale can be used to rate earthquakes of all sizes, near or far?

Moment magnitude scale

Mercalli scale

Richter scale

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Question 17 / 30

Rank the seismic waves in order of appearance when an earthquake first occurs as measured by a seismograph.

S waves, P waves, then surface waves

P waves, S waves, then surface waves

S and P waves at the same time, then surface waves

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Question 18 / 30

When an earthquake strikes, the farther away the epicenter is, the greater the difference between the two arrival times of P and S waves.

True

False

I have no idea.

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Question 19 / 30

Typically, three different seismograph stations are used to plot circles on a map with each circle showing the distance from one station to all the points where the epicenter could be.

The farthest circle from all the seismographs is the epicenter location.

The single point where the three circles intersect is the epicenter location.

The closest point to the first seismograph that registered is the epicenter location.

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Question 20 / 30

The time difference for the arrival of P and S waves at a seismograph tells scientists what information?

How far from the seismograph the epicenter is.

How far deep in the earth the origin of the focus is.

The magnitude of the earthquake.

expert

Question 21 / 30

What state has the most earthquakes and the strongest earthquakes?

California

Oregon

Alaska

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Question 22 / 30

An earthquake can be defined as the sudden shaking of the __________.

Oceanic crust

Lithosphere

Inner core

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Question 23 / 30

The earth's crust may at first bend and when the stress force exceeds the strength of the rock, it changes and breaks. The process of breaking results in seismic waves.

True

False

I do not have a clue.

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Question 24 / 30

What are the three main causes of earthquakes?

Volcanoes, movemement of tectonic plates, human activity such as bombs

Volcanoes, the moon's gravitational forces, tectonic plate movement.

Volcanoes, the sun's gravitational forces, tectonic plate movement.

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Question 25 / 30

The break in the Earth's crust where slabs of crust slip past each other is called a _______.

Tectonic plate

Lithosphere break

Fault

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Question 26 / 30

What is the point beneath the Earth's crust where rocks first break under stress causing an earthquake?

First seismic surface wave

Epicenter

Focus or hypocenter

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Question 27 / 30

Seismic waves are best described as :

Energy

Vibrations

Forces

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Question 28 / 30

Which seismic waves make the ground roll like ocean waves causing buildings to sway from side to side?

S waves

P waves

Surface waves

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Question 29 / 30

The most likely causes of volcanoes and earthquakes are :

The breaking of the lithosphere

The slipping or interacting of tectonic plates

Magma and energy release from the inner core of the earth

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Question 30 / 30

Which seismic waves are the most destructive?

S waves

P waves

Surface waves

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Quiz Earthquakes (6th Grade)

In earthquake terminology, how is a focus described?

What are the different kinds of seismic waves?

How can the epicenter of an earthquake be characterized?

How does the energy of an earthquake travel through the Earth?

________ carry the energy of an earthquake away from the focus.

When considering the three types of seismic waves, which waves move more slowly than their counterparts yet produce the most severe ground movements?

These type of waves compress and expand the ground like an accordion.

Which waves vibrate from side to side and up and down?

When P and S waves reach the surface of the Earth, some are transformed into surface waves.

What instrument is used to measure and record the vibrations of seismic waves?

An earthquake's ___________ is a measurement of its strength based on seismic waves and movement along faults.

How many rating scales are used to measure earthquakes?

This rating scale rates earthquakes according to the size of seismic waves as measured by a seismograph.

What earthquake rating scale rates earthquakes by describing their effects on people, buildings, and the land surface in a given location?

This scale rates earthquakes by estimating the total energy released.

Which earthquake rating scale can be used to rate earthquakes of all sizes, near or far?

Rank the seismic waves in order of appearance when an earthquake first occurs as measured by a seismograph.

When an earthquake strikes, the farther away the epicenter is, the greater the difference between the two arrival times of P and S waves.

Typically, three different seismograph stations are used to plot circles on a map with each circle showing the distance from one station to all the points where the epicenter could be.

The time difference for the arrival of P and S waves at a seismograph tells scientists what information?

What state has the most earthquakes and the strongest earthquakes?

An earthquake can be defined as the sudden shaking of the __________.

The earth's crust may at first bend and when the stress force exceeds the strength of the rock, it changes and breaks. The process of breaking results in seismic waves.

What are the three main causes of earthquakes?

The break in the Earth's crust where slabs of crust slip past each other is called a _______.

What is the point beneath the Earth's crust where rocks first break under stress causing an earthquake?

Seismic waves are best described as :

Which seismic waves make the ground roll like ocean waves causing buildings to sway from side to side?

The most likely causes of volcanoes and earthquakes are :

Which seismic waves are the most destructive?

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