BJU Earth science chapter 6

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

Upper block drops relative to the lower block

What is the fault's strike?

A transform fault

An instrument that simply measures earth waves

Where are earthquakes most common?

Energy of an earthquake

What is the increments of the Richter scale?

Allow a material to change shape without breaking.

Two plates moving towards each other.

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.

A crack in a rock where movement can occur.

What can cause earthquakes?

Plates moving past each other.

What is the fault line?

Blocks move next to each other

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

A joint is a miniature fault.

Two plates moving away from each other.

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

What is the fault plane/face?

What is the dip angle?

Secondary earthquakes are caused by

Type of stress most significant in earthquakes.

Upper block moves above the lower block