Exploring Seismic Waves and Earthquake Types

The video explains the two main types of seismic waves: body waves and surface waves. Body waves include primary (P) waves, which are compressional and travel through the Earth's interior, and secondary (S) waves, which are shear waves that only travel through solids. Both types of body waves have shadow zones due to their interaction with the Earth's core. Surface waves, such as Love and Rayleigh waves, travel along the Earth's surface and can cause significant damage by displacing materials horizontally and vertically.

What are the two main types of seismic waves generated by earthquakes?

• Body waves and surface waves

• Primary waves and secondary waves

• Love waves and Rayleigh waves

• Compressional waves and shear waves

Which type of wave travels through the interior of the Earth and is the fastest?

• S waves

• Love waves

• Rayleigh waves

• P waves

Tags

NGSS.HS-PS4-1

Why are P waves not seen in the 'shadow zone'?

• They are absorbed by the Earth's core

• They are deflected by the Earth's core

• They move slower in dense rock

• They travel only through solids

What is the main characteristic of secondary or S waves?

• They cause vertical deformation

• They penetrate the Earth's outer molten core

• They travel faster in fluids

• They move material sideways at right angles to their direction of travel

Tags

NGSS.HS-PS4-1

Why do S waves not penetrate the Earth's outer molten core?

• They travel only through solids

• They are absorbed by the core

• They move slower in dense rock

• They are deflected by the core

Which type of surface wave travels in a circular motion and causes horizontal displacement?

• P waves

• S waves

• Love waves

• Rayleigh waves

What type of wave causes vertical deformation and contributes to earthquake damage?

• Love waves

• Rayleigh waves

• S waves

• P waves