Consequences

Insignificant 1

Minor 2

Moderate 3

Major 4

Catastrophic 5

Exposure

Rare

1

1

2

3

4

5

Improbable

2

2

4

6

8

10

Possible

3

3

6

9

12

15

Probable

4

4

8

12

16

20

Certain

5

5

10

15

20

25