# SOLAR SYSTEM

## UNIVERSE

### PLANETARY INTERIORS

 Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the approximate P-wave travel time from an earthquake if the P-wave arrives at the seismic station 8 minutes before the S-wave?
 A 4 min 20 seconds B 6 min 30 seconds C 10 min 0 seconds D 11 min 20 seconds
Explanation:

Detailed explanation-1: -What is the approximate P-wave travel time from an earthquake if the P-wave arrives at the seismic station 8 minutes before the S-wave? A P-wave takes 5 minutes to travel from the epicenter of an earthquake to a seismic station.

Detailed explanation-2: -A P-wave takes 8 minutes and 20 seconds to travel from the epicenter of an earthquake to a seismic station.

Detailed explanation-3: -Compressional or P-Waves They typically travel at speeds between  1 and  14 km/sec. The slower values corresponds to a P-wave traveling in water, the higher number represents the P-wave speed near the base of Earth’s mantle.

Detailed explanation-4: -7) If you are asked to determine the arrival time of the P-wave and given a clock time for the arrival of the S-wave: Find difference in arrival time between P-wave and S-wave at the given epicenter distance, Subtract the difference in arrival time from the clock time of the S-wave.

Detailed explanation-5: -According to the Earth Science Reference Tables, approximately how far will a P-wave travel in 8 minutes? 4.8 x 10^3 km. Travel faster through more dense solid materials.

Detailed explanation-6: -Explain your answer. P waves travel faster than S waves. 8000 km away? Approximately 11 minutes and 20 seconds.

Detailed explanation-7: -Finding the Distance to the Epicenter Use the time difference between the arrival of the P and S waves to estimate the distance from the earthquake to the station. (From Bolt, 1978.) Measure the distance between the first P wave and the first S wave. In this case, the first P and S waves are 24 seconds apart.

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