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Table 2 Search area used in most sites for inversion analysis

From: Estimation of shallow S-wave velocity structure using microtremor array exploration at temporary strong motion observation stations for aftershocks of the 2016 Kumamoto earthquake

Layer

Density (g/cm3)

V p (m/s)

V S (m/s)

Thickness (m)

1

1.6

\(\sqrt 3\) V S

70–150

1–50

2

1.8

\(\sqrt 3\) V S

150–500

1–50

3

1.9

1180

500

–