Table 2 Strong-motion stations with evident nonlinear site response during the Wenchuan main shock based on identification with RF_p, DNL, ADNL, and PNL, respectively

1

51AXT

●

●

●

○

Medium

2

51GYS

●

●

●

●

Strong

3

51GYZ

●

●

●

●

Strong

4

51JYC

●

●

●

●

Strong

5

51JYD

●

●

●

●

Strong

6

51JYH

●

●

●

●

Strong

7

51JZB

○

○

○

●

Medium

8

51JZW

●

●

○

●

Medium

9

51LXT

○

●

○

○

Medium

10

51MXN

○

○

○

●

Medium

11

51MZQ

●

●

●

●

Medium

12

51SFB

●

●

●

●

Strong

13

51TQL

○

○

○

●

medium

14

51WCW

●

●

●

●

Strong

15

51XJD

●

○

○

○

Medium

16

62WUD

○

●

●

●

Medium