Factors

Class

No of pixels

in internal

% of in internal

No of

landslide

% of

landslide

Frequency

ratio

slope

0˚ - 7˚

1,073,694

0.26

30

0.12

0.46

8˚ - 15˚

1,198,318

0.29

82

0.32

1.13

16˚ - 25˚

1,003,784

0.24

92

0.36

1.51

26˚ - 35˚

584,827

0.14

39

0.15

1.10

>35˚

342,995

0.08

12

0.05

0.58

aspect

flat

32,864

0.01

2

0.01

1.00

N

642,061

0.15

58

0.23

1.49

NE

692,749

0.16

62

0.24

1.48

E

622,765

0.15

27

0.11

0.71

SE

420,820

0.10

22

0.09

0.86

S

291,271

0.07

12

0.05

0.68

SW

343,124

0.08

11

0.04

0.53

W

496,224

0.12

26

0.10

0.86

NW

661,740

0.16

35

0.14

0.87

Rock formation

γ

6634

0.00

0

0.00

0.00

P

148,296

0.04

9

0.04

1.00

D

125,565

0.03

3

0.01

0.39

C

525,210

0.13

14

0.05

0.44

T

37,799

0.01

5

0.02

2.18

J

1,437,547

0.34

190

0.75

2.18

K

337,329

0.08

9

0.04

0.44

E-N

407,086

0.10

10

0.04

0.40

Q₃pl-Q1

944,902

0.22

3

0.01

0.05

Q4

229,284

0.05

12

0.05

0.86

Distance to fault

0 - 1500 m

1,706,709

0.41

82

0.32

0.79

1500 - 3000 m

969,180

0.23

68

0.27

1.16

3000 - 4500 m

576,475

0.14

49

0.19

1.40

4500 - 6000 m

314,189

0.07

34

0.13

1.78

>6000 m

637,065

0.15

22

0.09

0.57

Distance to drainage

0 - 400 m

1,348,084

0.32

165

0.65

2.02

400 - 800 m

1,057,756

0.25

32

0.13

0.50

800 - 1200 m

770,123

0.18

15

0.06

0.32

1200 - 1600 m

493,016

0.12

16

0.06

0.53

1600 - 2000 m

298,034

0.07

13

0.05

0.72

2000 - 2400 m

152,044

0.04

9

0.04

0.98

>2400 m

84,561

0.02

5

0.02

0.97

Drainage density

<0.9/km

340,397

0.08

25

0.10

1.21

0.9 - 1.1/km

1,467,887

0.35

143

0.56

1.61

1.1 - 1.3/km

1,622,329

0.39

73

0.29

0.74

1.3 - 1.5 km

536,025

0.13

13

0.05

0.40

>1.5/km

236,980

0.06

1

0.00

0.07

FVC

0% - 10%

52,120

0.01

4

0.02

1.27

10% - 20%

204,596

0.05

19

0.07

1.53

20% - 50%

1,342,311

0.32

72

0.28

0.88

50% - 75%

1,256,670

0.30

66

0.26

0.87

75% - 100%

1,347,921

0.32

94

0.37

1.15

landuse

farmland

76,033

0.02

1

0.00

0.22

forest

465,573

0.11

25

0.10

0.89

grass

715,873

0.17

86

0.34

2.00

water

50,268

0.01

0

-

0.00

reservoir

9289

0.00

0

-

0.00

tidal flat

30,105

0.01

6

0.02

3.32

snow

8361

0.00

-

0.00

buildup

24,506

0.01

5

0.02

3.40

bare soil

1,402,117

0.33

29

0.12

0.34

gravel

138,967

0.03

8

0.03

0.96

rock

1,278,564

0.30

91

0.36

1.19

Distance to road

0 - 500 m

1,244,405

0.30

178

0.70

2.36

500 - 1000 m

993,757

0.24

27

0.11

0.45

1000 - 1500 m

750,699

0.18

21

0.08

0.46

1500 - 2000 m

511,902

0.12

14

0.05

0.45

2000 - 2500 m

322,203

0.08

9

0.04

0.46

>2500 m

380,652

0.09

6

0.02

0.26