The s-p interval of seismic waves recorded at a seismometer in eight minutes. approximately how far away is the earthquakes epicenter from the seismometer? [equation: (s-p interval)= 0.00146 (distance to epicenter)] a. 5,500 b. 8 km c. less than 1 km d. 550 km

Option (A)

Explanation:

The P and S waves are the Primary and the Secondary waves. This S-P interval is recorded at a seismometer which is given as 8 minutes.

Given, S-P interval= 8 minutes

          Distance from the epicenter to the seismometer is required to find

According to the equation provided,

⇒(S-P interval) = 0.00146 × (distance to the epicenter)

⇒8 = 0.00146 × (distance to the epicenter)

⇒(distance to the epicenter) = 8 ÷ 0.00146

⇒(distance to the epicenter) = 5479.452 km

Thus, the approximate distance from the epicenter to the seismometer is 5500 km.

Thus, the correct answer is option (A).