An Earthquake Emits Both S-Waves and P-Waves, Which Travel at Different

question 46

Multiple Choice

An earthquake emits both S-waves and P-waves, which travel at different speeds through the Earth. A P-wave travels at 9000 m/s and an S-wave travels at 5000 m/s. If P-waves are received at a seismic station 1.00 minute before an S-wave arrives, how far away is the earthquake centre?

• A)88.9 km
• B)1200 km
• C)675 km
• D)240 km
• E)480 km

---

Definitions:

Metabolic Rate

The rate at which the body uses energy for essential processes like breathing, circulating blood, and cellular repair.

Evaporation

The process in which liquid water turns into vapor, typically influenced by heat.

Muscle Tissue

A soft tissue in animals that generates force and allows for movement, comprising skeletal, cardiac, and smooth muscle types.

Voluntary Contraction

The intentional activation of muscle fibers through the nervous system, enabling movement and physical actions.