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Table 2 Calculated ETAS parameters by MLE. The number in round brackets is error ratio, assuming that each parameter has log normal distribution.

From: Statistic analysis of swarm activities around the Boso Peninsula, Japan: Slow slip events beneath Tokyo Bay?

  

α

c

K

p

μ

μ 1

T sw

Boso2002

Single

0.53

0.0007

0.032

0.90

0.02

  

(1.28)

(4.19)

(1.16)

(1.04)

(1.37)

 

Pre

0.67

0.0386

0.034

1.02

0.02

  

(1.26)

(2.50)

(1.24)

(1.09)

(1.30)

 

Swarm

8 × 10−10

0.0003

0.054

1.0*

2.21

  

(8 × 108)

(9.13)

(1.73)

(1.71)

 

Post

0.17

2 × 10−5

0.041

0.80

0.02

  

(3.39)

(30.0)

(1.31)

(1.09)

(1.93)

 

Boxcar

0.60

0.0002

0.025

0.86

0.02

2.82

7.10

  

(1.25)

(2.00)

(1.17)

(1.04)

(1.37)

(1.59)

(1.38)

 

Exp.

0.64

0.0002

0.023

0.87

0.02

3.93

6.32

  

(1.23)

(2.00)

(1.17)

(1.05)

(1.34)

(1.54)

(1.43)

Boso2007

Single

0.87

0.0019

0.019

1.09

0.05

  

(1.13)

(1.90)

(1.19)

(1.05)

(1.24)

 

Pre

0.39

0.0001

0.019

0.93

0.05

  

(2.08)

(7.48)

(1.45)

(1.09)

(1.28)

 

Swarm

1.99

0.0011

0.002

1.0*

5.78

  

(1.07)

(3.30)

(1.44)

(1.45)

 

Post

0.76

0.0019

0.024

1.04

0.05

  

(1.29)

(3.92)

(1.40)

(1.10)

(1.56)

 

Boxcar

0.98

0.0009

0.011

1.09

0.05

5.86

5.35

  

(1.13)

(2.11)

(1.25)

(1.05)

(1.22)

(1.46)

(1.37)

 

Exp.

0.62

0.0011

0.010

1.10

0.05

9.96

2.67

  

(1.12)

(2.01)

(1.24)

(1.05)

(1.22)

(1.52)

(1.42)

Tokyo2005

Single

1.03

0.0064

0.018

1.22

0.06

  

(1.12)

(1.66)

(1.22)

(1.05)

(1.20)

 

Pre

0.18

0.0007

0.036

0.93

0.03

  

(3.72)

(4.61)

(1.28)

(1.08)

(1.31)

 

Swarm

2 × 10−7

0.0001

0.032

1.0*

69.5

  

(2 × 106)

(500)

(2.48)

(1.50)

 

Post

1.00

0.0009

0.028

1.01

0.04

  

(1.39)

(5.12)

(1.40)

(1.10)

(1.73)

 

Boxcar

0.30

0.0008

0.030

1.00

0.04

70.00

0.36

  

(1.95)

(2.94)

(1.24)

(1.06)

(1.24)

(1.50)

(1.23)

 

Exp.

0.22

0.0008

0.031

1.00

0.045

142.8

0.19

  

(2.33)

(2.91)

(1.25)

(1.06)

(1.23)

(1.49)

(1.37)

  1. (*) Fixed.