Revision

Only 15% of earthquakes are felt on the Earth’s surface.

• TRUE

• FALSE

Focus is also called as _______________.

•   Epicenter  

• Hypocenter

• Waves 

• S-waves

It is an instrument used to measure and record details of earthquakes.

• Seismologist

• Seismic waves

• Seismograph

• Seismology   

It is the point on the Earth’s surface that lies above the focus.

• Epicenter  

• Waves   

• Hypocenter    

• S-waves

These are the fractures or break in the Earth’s crust.

•    Earthquake

• Fault lines    

• Waves

• Tectonic plates

The fastest waves

• Primary Waves                             

• Secondary Waves

This region has almost 80% earthquakes and surrounded by convergent and transform boundaries.

• Plate boundaries  

• Pacific Ocean   

• Ring of Fire  

• Tectonic plates

What boundary do earthquakes mostly occur?

• Convergent

• Divergent 

• Transform   

• Plate

It refers to the violent shaking of the Earth’s ground caused by the released of energy from the rocks.

• Seismic Waves  

• Earthquake 

• Tsunami

• Body waves

Earthquakes happen due to the breaking of rocks below the surface of the Earth.

• TRUE

• FALSE