The electromagnetic waves travel through space
The vibrations that travel through the earth as the Earth spins
The electromagnetic waves travel through space during an earthquake.
The vibration during earthquake, which travels through the ground
To the east
To all directions
To the underground
Towards the sky
At the surface above quake focus
At the quake focus
Kilometers away
Far underground
Surface waves and standing waves
P waves and jumping waves
Secondary waves and S waves
P waves and S waves
Sleeping waves
P waves
S waves
Surface waves
Gas
Gas and solids
Solids and liquids
All phases
It compresses and expands the ground
It makes the ground go up and down
It cracks the ground
It does nothing
Solids
Solids and liquids
Gas and solids
All phases
Shakes the ground horizontally
Makes the ground vibrate vertically
It shakes and vibrates the ground both horizontally and vertically
It isn't strong enough to move the ground
1-2 questions
3-4 questions
5-6 questions
More than 7 questions
By transforming into a much slower wave
By transforming into a much faster wave
By combining into a stronger wave
By interference
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