Geoenvironmental Disasters

Table 1 Range values of initial parameters for H/V inversion

From: Seismic hazard microzonation of Bengkulu City, Indonesia

Layer	Soil Type	Thickness	V_s	V_p	Density	Poisson Ratio
Layer	USCS	[m]	[m/s]	[m/s]	[ρ] [kg/cm³]	[ν]
1	OH/CH	1–20	90–270	125–375	1800–2000	0.400–0.495
2	CM	1–20	160–350	240–525	1800–2000	0.400–0.495
3	SM, SP, SC	1–20	200–500	300–750	1800–2000	0.200–0.400
4	SW, SC, GC	1–20	400–600	600–900	1800–2000	0.200–0.400
Half-space	Sandstone	~	500–760	750–1140	2000–2200	0.100–0.300

Remarks: OH organic clay, CH high plasticity clay, CM silty clay, SM silty sand, SP poor-graded sand, SC clayey sand, SW well-graded sand, GC clayey gravel

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