SCIENCE 8

1. The point inside the Earth where an earthquake originates is called the __.

• Fault

• Focus

• Point

• Line

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

• Fault

• Focus

• Epicenter

• Point

1. A __ fault occurs when the hanging wall moves up relative to the footwall.

• Normal

• Strike-slip

• Return

• Reverse

1. The __ scale is used to measure the magnitude of an earthquake.

• Richter

• Seismograph

• Thermometer

• Graph

1. A __ is a fracture in the Earth's crust where movement has occurred.

• Fault

• Focus

• Line

• Point

The type of fault involves horizontal movement is ___________

___________ is the device used to detect and record earthquakes?

1. A __ is a smaller earthquake following the main shock.

1. Seismic waves are generated by the sudden release of __ in the Earth's crust.

A ___ is the first shock of an earthquake?