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8. The following table gives arrival times of P-waves (t,) and S-waves (t) from a nearby earthquake: Recording Station Time of day [hr:min] 1, [s] A 54.65 57.34 23:36 57.90 В 23:36 62.15 23:37 00.49 07.55 D 23:37 01.80 10.00 E 23:37 01.90 10.10 23:37 23:37 10.70 12.00 F 02.25 03.10 03.50 H 23:37 12.80 I 23:37 06.08 18.30 J 23:37 07.07 19.79 K 23:37 08.32 21.40 L 23:37 11.12 26.40 M N 23:37 23:37 11.50 17.80 26.20 37.70 (a) Plot the arrival-time differences (t, - t) against the arrival times of the P-wave to produce a Wadati diagram. (b) Determine the ratio a/B of the seismic velocities. (c) Determine the time of occurrence (t) of the earthquake.

8. The following table gives arrival times of P-waves (t,) and S-waves (t) from a nearby earthquake: Recording Station Time of day [hr:min] 1, [s] A 54.65 57.34 23:36 57.90 В 23:36 62.15 23:37 00.49 07.55 D 23:37 01.80 10.00 E 23:37 01.90 10.10 23:37 23:37 10.70 12.00 F 02.25 03.10 03.50 H 23:37 12.80 I 23:37 06.08 18.30 J 23:37 07.07 19.79 K 23:37 08.32 21.40 L 23:37 11.12 26.40 M N 23:37 23:37 11.50 17.80 26.20 37.70 (a) Plot the arrival-time differences (t, - t) against the arrival times of the P-wave to produce a Wadati diagram. (b) Determine the ratio a/B of the seismic velocities. (c) Determine the time of occurrence (t) of the earthquake.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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8. The following table gives arrival times of P-waves (t,) and S-waves (t) from a nearby earthquake: Recording Station Time of day [hr:min] 23:36 23:36 57.90 62.15 A 54.65 57.34 В C 23:37 00.49 07.55 10.00 23:37 23:37 23:37 23:37 23:37 D 01.80 E 01.90 10.10 F 02.25 10.70 G 03.10 12.00 H 03.50 12.80 06.08 07.07 08.32 I 23:37 18.30 23:37 23:37 23:37 J 19.79 K 21.40 11.12 11.50 26.40 M 23:37 23:37 26.20 37.70 N 17.80 (a) Plot the arrival-time differences (t, - t,) against the arrival times of the P-wave to produce a Wadati diagram. (b) Determine the ratio a/B of the seismic velocities. (c) Determine the time of occurrence (t) of the earthquake.
Transcribed Image Text:8. The following table gives arrival times of P-waves (t,) and S-waves (t) from a nearby earthquake: Recording Station Time of day [hr:min] 23:36 23:36 57.90 62.15 A 54.65 57.34 В C 23:37 00.49 07.55 10.00 23:37 23:37 23:37 23:37 23:37 D 01.80 E 01.90 10.10 F 02.25 10.70 G 03.10 12.00 H 03.50 12.80 06.08 07.07 08.32 I 23:37 18.30 23:37 23:37 23:37 J 19.79 K 21.40 11.12 11.50 26.40 M 23:37 23:37 26.20 37.70 N 17.80 (a) Plot the arrival-time differences (t, - t,) against the arrival times of the P-wave to produce a Wadati diagram. (b) Determine the ratio a/B of the seismic velocities. (c) Determine the time of occurrence (t) of the earthquake.
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