Site Characterization

Averaging Depth (m)
Average Travel Time Velocity Vsz (m/s)
Velocity Uncertainty (m/s)
5.0 297 65
10.0 359 40
15.0 396 39
20.0 427 33
25.0 451 27
30.0 469 25
40.0 497 24
50.0 524 25
75.0 595 11
100.0 655 12
150.0 750 17
200.0 828 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) 60.0

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

Z1 (m) 112.0

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

Z1.5 (m) 300.0

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 10:33:02 Document SALTS.pdf