UNIVERSE
PLANETARY INTERIORS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]


4 min 20 seconds


6 min 30 seconds


10 min 0 seconds


11 min 20 seconds

Detailed explanation1: What is the approximate Pwave travel time from an earthquake if the Pwave arrives at the seismic station 8 minutes before the Swave? A Pwave takes 5 minutes to travel from the epicenter of an earthquake to a seismic station.
Detailed explanation2: A Pwave takes 8 minutes and 20 seconds to travel from the epicenter of an earthquake to a seismic station.
Detailed explanation3: Compressional or PWaves They typically travel at speeds between 1 and 14 km/sec. The slower values corresponds to a Pwave traveling in water, the higher number represents the Pwave speed near the base of Earth’s mantle.
Detailed explanation4: 7) If you are asked to determine the arrival time of the Pwave and given a clock time for the arrival of the Swave: Find difference in arrival time between Pwave and Swave at the given epicenter distance, Subtract the difference in arrival time from the clock time of the Swave.
Detailed explanation5: According to the Earth Science Reference Tables, approximately how far will a Pwave travel in 8 minutes? 4.8 x 10^3 km. Travel faster through more dense solid materials.
Detailed explanation6: Explain your answer. P waves travel faster than S waves. 8000 km away? Approximately 11 minutes and 20 seconds.
Detailed explanation7: 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.