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Locate and mark on the map provided the epicentre of an earthquake that was recorded in Italy by three observation sites 1, 2 and 3, with a time delay between P- and S-waves of 5.0, 7.5 and 6.0 seconds, respectively. The body wave velocities are 8.5 km/sec and 4.30 km/sec; it is up to the reader to determine which of these values refer to P- and S-waves. Compare the results obtained by eqn. (1.1-a) with those estimated through eqn. (1.1-b). L'Aquila Station #1 Rome Manfredonia Campobasso Latina Fog le Bar Naple Potenza Station #2 Station #3 Salerno 100 200 km

Locate and mark on the map provided the epicentre of an earthquake that was recorded in Italy by three observation sites 1, 2 and 3, with a time delay between P- and S-waves of 5.0, 7.5 and 6.0 seconds, respectively. The body wave velocities are 8.5 km/sec and 4.30 km/sec; it is up to the reader to determine which of these values refer to P- and S-waves. Compare the results obtained by eqn. (1.1-a) with those estimated through eqn. (1.1-b). L'Aquila Station #1 Rome Manfredonia Campobasso Latina Fog le Bar Naple Potenza Station #2 Station #3 Salerno 100 200 km

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Locate and mark on the map provided the epicentre of an earthquake that was recorded in Italy by three observation sites 1, 2 and 3, with a time delay between P- and S-waves of 5.0, 7.5 and 6.0 seconds, respectively. The body wave velocities are 8.5 km/sec and 4.30 km/sec; it is up to the reader to determine which of these values refer to P- and S-waves. Compare the results obtained by eqn. (1.1-a) with those estimated through eqn. (1.1-b). L'Aquila Station #1 Rome Manfredonia Campobasso Latina Fogsle Bar Naple Potenza Station #2 Station #3 Salerno 100 200 km
Transcribed Image Text:Locate and mark on the map provided the epicentre of an earthquake that was recorded in Italy by three observation sites 1, 2 and 3, with a time delay between P- and S-waves of 5.0, 7.5 and 6.0 seconds, respectively. The body wave velocities are 8.5 km/sec and 4.30 km/sec; it is up to the reader to determine which of these values refer to P- and S-waves. Compare the results obtained by eqn. (1.1-a) with those estimated through eqn. (1.1-b). L'Aquila Station #1 Rome Manfredonia Campobasso Latina Fogsle Bar Naple Potenza Station #2 Station #3 Salerno 100 200 km
Vp Vs Ax = Depth (km) 10 - 30 40 Layer (type) V, (km/s) v, (km/s) - At (1.1– a) 6.57 3.82 Vp -Vs Crust 8.12 4.42 Upper Mantle 220 8.06 4.35 18.0 400 9.13 5.22 Proposed step-function 16.0 670 10.75 5.95 14.0 Lower Mantle 1200 2885 2890 3800 5150 11.78 13.72 8.06 9.31 10.36 11.03 11.26 6.52 7.26 12.0 10.0 0.00 8.0 Outer Core 0.00 6.0 0.00 Omori's fomula 4.0 5155 3.50 Inner Core 2.0 6371 3.67 0.0 10-30 40 220 400 670 1200 2885 For a quick evaluation, Omori's formula (Kanai, 1983) may also be used (Ax in km. At in seconds) Ax = 7.42 At Crust Uppar Mantle Lower Mantie Depth of Earth's Layers (in km) (1.1-b) (A-a)/(Ada) so
Transcribed Image Text:Vp Vs Ax = Depth (km) 10 - 30 40 Layer (type) V, (km/s) v, (km/s) - At (1.1– a) 6.57 3.82 Vp -Vs Crust 8.12 4.42 Upper Mantle 220 8.06 4.35 18.0 400 9.13 5.22 Proposed step-function 16.0 670 10.75 5.95 14.0 Lower Mantle 1200 2885 2890 3800 5150 11.78 13.72 8.06 9.31 10.36 11.03 11.26 6.52 7.26 12.0 10.0 0.00 8.0 Outer Core 0.00 6.0 0.00 Omori's fomula 4.0 5155 3.50 Inner Core 2.0 6371 3.67 0.0 10-30 40 220 400 670 1200 2885 For a quick evaluation, Omori's formula (Kanai, 1983) may also be used (Ax in km. At in seconds) Ax = 7.42 At Crust Uppar Mantle Lower Mantie Depth of Earth's Layers (in km) (1.1-b) (A-a)/(Ada) so
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