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Answer (1)
Answer:1. The Epicenter of Earthquake The point on the Earth's surface directly above the focus of an earthquake.The epicenter is the point where the earthquake's energy is released. 2. S-Wave Shadow Zone The area on the Earth's surface where S-waves are not detected.This is because S-waves cannot travel through the Earth's liquid outer core. 3. P-Wave A type of seismic wave that travels through solids, liquids, and gases.P-waves are faster than S-waves. 4. S-Wave A type of seismic wave that travels only through solids.S-waves are slower than P-waves. 5. P and S-Wave Both P-waves and S-waves are used to locate the epicenter of an earthquake.The difference in arrival times of the P-waves and S-waves can be used to determine the distance to the epicenter. 6. 142° The angle between the epicenter and the seismic station.This angle is used to determine the location of the epicenter. Key Knowledge: Seismic waves are vibrations that travel through the Earth.There are two main types of seismic waves: P-waves and S-waves.P-waves are faster than S-waves and can travel through solids, liquids, and gases.S-waves are slower than P-waves and can only travel through solids.The difference in arrival times of P-waves and S-waves can be used to determine the distance to the epicenter of an earthquake.The S-wave shadow zone is an area on the Earth's surface where S-waves are not detected because they cannot travel through the Earth's liquid outer core. Tips: The S-wave shadow zone is a key feature that helps scientists understand the structure of the Earth's interior.By studying seismic waves, scientists can learn about the composition, temperature, and pressure of the Earth's interior.
