Site Characterization

Averaging Depth (m)
Average Travel Time Velocity Vsz (m/s)
Velocity Uncertainty (m/s)
5.0 310 24
10.0 374 20
15.0 460 15
20.0 529 16
25.0 585 16
30.0 635 17
40.0 727 21
50.0 806 22
75.0 943 24
100.0 1031 28
150.0 1143 26
200.0 1220 22
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) 11.0

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

Z1 (m) 22.0

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

Z1.5 (m) 192.0

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

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Donat Fäh SED 26-06-2014 09:49:04 Document Determination_of_Site_Information_for_Seismic_Stations.pdf
Donat Fäh SED 01-04-2015 10:23:33 Document Geologie7.pdf