Question

Earthquake waves that vibrate from side to side and up and down only through solids are known as ______.

Answer 1

Earthquake waves that vibrate from side to side and up and down only through solids are known as secondary waves, or simply S-waves. As you can see in the question, they pass through solids - to be more precise, they flow through rocks and cause them to change their shape. They are quite strong, but not as strong as primary waves, as they cannot pass through liquids or gases.

Answer 2

Secondary waves or S waves vibrate side to side, up and down, and only through solids.