Earthquakes and Faults

Front

Which of the following describes a fault?

Back

A break in the Earth’s crust.

Front

What occurs when faults move?

Back

earthquake

Front

Why is it that not all movements along faults produce earthquakes?

Back

It is because the friction between rocks was not overcome by the energy of the Earth.

Front

Arrange the events of how fault movements generate earthquakes: I. Once friction is overcome, the rocks suddenly slip. II. Ground suddenly moves and an earthquake occurs. III. Energy from inside the Earth is necessary to make the ground move. IV. The rocks are stuck together due to friction.

Back

III, IV, I, II

Front

How do faults produce earthquakes?

Back

Energy from inside the Earth makes the ground move, once friction is overcome, a fault slips producing an earthquake.

Front

Which of the following describes a normal fault? both blocks slide past another, both blocks of rock move upward, one block of rock does not move while the other moves upward, one block of rock does not move while the other moves downward

Back

one block of rock does not move while the other moves downward

Front

Type of fault where two blocks slide horizontally past each other in opposite directions.

Back

strike-slip fault

Front

Which of the following types of faults is shown in the picture? strike-slip fault, reverse fault, normal fault, lateral fault

Back

reverse fault

Front

Direction of rock layer movement in reverse fault?

Back

upward

Front

How can you relate fault movements with earthquakes?

Back

Every time fault moves and friction between rocks is overcome this will result in an earthquake.