IGCSE earthquakes

What is the area directly above the spot where the earthquake actually occurs? (It is on Earth's surface.)

• Epicenter

• Focus

• Fault

• Triangulation

What type of fault is the San Andreas?

• Convergent

• Conservative

• Subduction

• Divergent

The Richter scale measures:

• the amount of radon gas released
• the movement of plates
• the strength of an earthquake
• the weight of tectonic plates

An earthquake scored high on the Richter scale but low on the Mercalli scale. Why?

• it probably happened in an area with no people
• it was a fast earthquake
• because it damaged a lot
• impossible to tell

Liquefaction is when...

• the soil behaves like liquid
• the ground becomes liquid
• magma rises to the surface
• buildings are damaged, crumbling like liquid

An instrument that detects and measures earthquakes is a

• seismogram

• focus seismic map

• focus

• seismometer

What is the beginning point of an earthquake, where the first motion of an earthquake occurs?

• Epicenter

• Focus or hypocenter

• P Waves

• Deformation

Which of the following is NOT a cause of an earthquake?

• Collapse of Cavern
• Eruption of Volcano
• Lightning Strikes
• Moving Tectonic Plates

What is a break in the lithosphere along which movement in an earthquake has first occurred?

• Earthquake
• Epicenter
• Fault
• Focus

What is the measure of the amount of energy released in an earthquake?

• Earthquake
• Epicenter
• Magnitude
• Seismogram