Estimate, to the nearest tenth of a minute, the times that P-waves and S-waves firstarrived at each recording station (seismograph location) in Figure 4. Then, subtract Pfrom S to get the S-minus-P time interval:
First P arrival First S arrival S-minus-P
Sitka, AK_______________________________
Charlotte, NC_______________________________
Honolulu, HI_______________________________



Answer :