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Table 1 Average values in dv/v and their standard deviations estimated from the three time windows, and computed indexes of strong ground motion, at each station

From: Coseismic changes in subsurface structure associated with the 2018 Hokkaido Eastern Iburi Earthquake detected using autocorrelation analysis of ambient seismic noise

Station

4.0–15.0 s

4.0–9.5 s

9.5–15.0 s

Strong motion indexes

dv/v

Error

dv/v

Error

dv/v

Error

Vs30

PGA

PGV

PDS

[%]

[%]

[%]

[%]

[%]

[%]

[m/s]

[gal]

[m/s]

[10−3]

N.AMAH*

− 2.61

0.16

− 3.58

0.27

− 1.02

0.27

111

958.3

1.820

16.38

ATSUMA

− 2.01

0.14

− 2.06

0.15

0.84

0.29

N/A

N/A

N/A

N/A

N.MBWH

− 0.33

0.06

− 0.40

0.05

− 0.15

0.23

341

587.7

0.636

1.86

N.CTSH

− 0.31

0.10

− 0.37

0.08

− 0.28

0.21

326

275.5

0.318

0.98

N.YUBH

− 0.28

0.02

− 0.33

0.04

− 0.14

0.07

1027

172.7

0.103

0.10

N.OIWH

− 0.17

0.19

− 0.02

0.19

− 0.18

0.23

307

1928.2

2.637

8.59

N.HOBH

− 0.13

0.02

− 0.21

0.03

0.02

0.08

542

775.3

0.364

0.67

N.KYMH

− 0.08

0.03

− 0.07

0.03

− 0.08

0.04

267

770.5

0.348

1.30

N.MBEH

− 0.07

0.03

− 0.06

0.04

− 0.14

0.09

341

456.4

0.236

0.69

N.SZNH

− 0.02

0.07

0.04

0.07

− 0.13

0.14

412

255.8

0.342

0.83

N.BREH

0.01

0.03

0.07

0.04

− 0.08

0.09

444

319.7

0.230

0.52

N.BRWH*

0.07

0.06

0.12

0.05

− 0.02

0.14

368

889.6

0.956

2.60

  1. *Indicates we used unscreened data from KiK-net