How do seismic waves reveal the structure of Earth's interior?

1 Answer
Jan 21, 2016

Overall analysis of the propagation of too-weak, weak, strong and too-strong seismic waves from the epicenters of earthquakes, over a long period, reveals the structure of Earth's interior.

Explanation:

Seismic waves travel faster in mantle. Outer core has an extremely low viscous liquid that is quite distinct from liquid. Seismic waves are reflected here. Yet, too-strong primary waves are propagated into the core. Forever, there is scope for improvement in this research.