Question

A seismograph station can determine its distance from an earthquake's epicenter by _____.

- subtracting P from S wave arrival time and then determining what that time is equal to in distance

- mapping P and S wave arrival times on a map

- subtracting P, S, and L wave arrival times, determining the distance from this number, and then mapping it

- One station can't locate its distance from an epicenter. Three stations must do this.

Answer 1

Me too
I also don’t know
Sorry