The next figure in this exercise shows how to use seismic wave delay data to loc

Question

The next figure in this exercise shows how to use seismic wave delay data to locate the distance from each station to the epicenter. Start with one of the stations and then repeat for the others. Draw an arrow to represent the P-wave arrival anywhere near the bottom on a station worksheet (APPENDIX 16.1)or create your own scale using a separate sheet of paper. In this case, make sure to copy the scales in the worksheets exactly. Then indicate the arrivals of the S-, Love, and Rayleigh waves using the appropriate time delays you recorded in the table. The following figure shows seismograms from three stations. Identify each of the waves and record their arrival times in the table provided on the next page. Then calculate the times between arrivals by subtracting the P-wave arrival time from that of the S-wave, the S-wave from the Love wave, and the Love from the Rayleigh. (a) Seattle, Washington (b) Boston, Massachusetts, (c) Los Angeles, California

Explanation / Answer

Arrival times of seismic waves

Seattle Boston Los Angeles

P wave 5:42:01 5:40:00 5:42:02

S wave 5:46:03 5:43:00 5:46:00

Love wave 5:48:01 5:43:04 5:47:01

Rayleigh wave 5:49:00 5:44:02 5:48:00

Delay between seismic waves

Seattle Boston Los Angeles

S-P 4:02 3:00 3:58

Love-S 2:02 0:04 1:01

Rayleigh-Love 0:59 0:58 0:59

First of all the waves i.e P waves, S waves, love and Rayleigh waves are identified, their first arrival is noted down in the table. Then their delay time of S-P, Love-S and Rayleigh-Love is noted by subtracting the difference of their arrival times.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.