Site Characterization

Averaging Depth (m)
Average Travel Time Velocity Vsz (m/s)
Velocity Uncertainty (m/s)
5.0 375 64
10.0 420 34
15.0 445 28
20.0 485 24
25.0 513 22
30.0 535 21
40.0 566 19
50.0 587 20
75.0 689 12
100.0 777 19
150.0 912 16
200.0 1009 13
QWL Picture

Quarter-wavelength representation of the velocity profiles. See Poggi et al. (2012). Characterizing the Vertical-to-Horizontal Ratio of Ground Motion at Soft-Sediment Sites. Bulletin of the Seismological Society of America, 102(6), 2741–2756.

Profile Picture
Z0.8 (m) 53.0

Z0.8 is the depth where the average of the profiles reach the velocity of 0.8 km/s

Z1 (m) 55.0

Z1 is the depth where the average of the profiles reach the velocity of 1 km/s,

Z1.5 (m) 189.0

Z1.5 is the depth where the average of the profiles reach the velocity of 1.5km/s

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Clotaire Michel SED 04-09-2015 09:16:28 Document Michel_et_al_2014.pdf
Clotaire Michel SED 04-06-2014 09:32:37 Document SAIG.pdf