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The speed of seismic waves varies as they travel through earth ​
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The speed of seismic waves varies as they travel through earth ​

User Muneef M
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The propagation velocity of the waves depends on density and elasticity of the medium. Velocity tends to increase with depth and ranges from approximately 2 to 8 km/s in the Earth's crust up to 13 km/s in the deep mantle.
User Talk Nerdy To Me
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