Site Characterization

Averaging Depth (m)
Average Travel Time Velocity Vsz (m/s)
Velocity Uncertainty (m/s)
5.0 367 24
10.0 468 20
15.0 519 16
20.0 551 17
25.0 588 14
30.0 620 15
40.0 675 13
50.0 723 10
75.0 816 9
100.0 876 8
150.0 948 9
200.0 994 6
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) 24.0

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

Z1 (m) 44.0

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

Z1.5 (m) 243.0

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 10:34:07 Document SLTM2.pdf