BJU Earth Science Chapter 6 (Full Unit)

What is the surface between two sections of rock that move to form a fault.

The center of earthquake activity

Two plates moving away from each other.

Break in rock that just relieves stress but doesn't cause motion

A low frequency shock wave traveling through the earth.

the fastest body wave

An instrument that simply measures earth waves

Subduction occurs at what type of boundary?

What is the increments of the Richter scale?

What is the fault line?

Where are earthquakes most common?

What is the fault's strike?

Secondary earthquakes are caused by

A joint is a miniature fault.

The amount of energy by which one unit of Richter scale would increase.

Most destructive wave

Point on the earth's surface above the center of earthquake activity

Two plates moving towards each other.

Energy of an earthquake

A transform fault

Body wave that can't travel through the earth's core

Allow a material to change shape without breaking.

What is the fault plane/face?

Blocks move next to each other

Upper block moves above the lower block

What can cause earthquakes?

Which of the following is a hazard of an earthquake

Plates moving past each other.

Type of stress most significant in earthquakes.

A crack in a rock where movement can occur.

Upper block drops relative to the lower block

Earthquakes are easily predictable

Not all rocks respond the same way to strain.

Which scale is used to report earthquakes to the public?

Most earthquakes people are able to feel.

An instrument that detects and records earth waves.

What is the dip angle?