Earths Structure

Earths layers

• First layer is the crust
• Second layer is mantle
• Third layer is the outer core
• Fourth layer is the inner core

Types of waves

• Primary Waves
• Secondary Waves
• Surface Waves
• Love Waves

Earthquakes

• can be measured by
• The Mercalli scale
• The righter scale

To locate earthquakes

• The magnitude scale
• The Mercalli scale
• The richer scale

The End