Table 1 Gutenberg–Richter (G–R) equations (\({\mathrm{log}}_{10}\left({n}_{M}\right)=a-bM\pm c\)) used for the sensitivity tests

A

0

M > 5.0, since 1919, depth < 50 km, earthquakes in ocean region, dip-slip reverse fault type (original)

B

 + 0.155

Same as A, but shifted by standard deviation

C

− 0.155

Same as A, but shifted by standard deviation

D

0

The condition of M > 2 differs from A

E

0

The condition of since 1997 differs from A

F

0

The condition of all depths differs from A

G

0

The condition of earthquakes in terrestrial and ocean regions differs from A

H

0

The condition of all slip types differs from A