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Table 2. Displacement magnitude determination coefficients in Eq. (1).

From: Rapid magnitude determination from peak amplitudes at local stations

T c (s)

a

b

c

1

1.23

3.48

3.02

2

1.23

3.21

3.17

5

1.23

2.61

4.10

10

1.23

1.99

5.31

20

1.23

1.46

6.39

50

1.23

1.22

6.80

100

1.23

1.24

6.64