Incident reporting risk matrix

  • Help with risk ratings in Themis

    If you are a supervisor  responding to an incident in Themis, on the Incident Investigation and Classification page, you will be asked to enter the Consequence and Likelihood of the incident, in order to assign a Risk Rating. This page provides a quick reference for the meaning of each option you can choose.

    More help and related information

  • Consequence definitions

    Use the consequence table below to determine the severity of the incident.

    Severity Level

    Consequences    Types

    Health and safety

    Natural Environment

    V
    Catastrophe

    Multiple fatalities, or    significant irreversible
    effects to >50 persons

    Very serious, long-term    environment
    impairment of ecosystem functions.

    IV
    Major

    Single fatality and/or    severe irreversible
    disability (>30%) to one or more    persons

    III
    Moderate

    Moderate irreversible    disability or
    impairment (<30%) to one or more    persons

    Serious medium term environment    effects

    II
    Significant

    Objective but    reversible disability requiring hospitalization

    Moderate, short-term    effects but not affecting
    ecosystem functions

    I
    Negligible

    No medical treatment required

    Minor effects on    biological of physical Environmen

  • Likelihood definitions

    Use the likelihood table below to assist in determining the likelihood of  the incident occurring or re-occurring.

    Likelihood    (Probability)

    Level

    Descriptor

    Description

    Indicative Frequency
    (expected to occur)

    A

    Almost certain

    The event will occur on an annual    basis

    Once a year or more frequently

    B

    Likely

    The event has occurred several times    or more in your career

    Once every three years

    C

    Possible

    The event might occur once in your    career

    Once every ten years

    D

    Unlikely

    The event does occur somewhere from    time to time

    Once every thirty years

    E

    Rare

    Heard of something like the event    occurring else-where

    Once every 100 years

  • Risk rating calculation

    Themis will automatically calculate the Risk Rating  from the  consequence and likelihood ratings, using the table below.

    Likelihood Label

    Consequences Label

    I

    II

    III

    IV

    V

    A

    Medium

    High

    High

    Very high

    Very high

    B

    Medium

    Medium

    High

    High

    Very high

    C

    Low

    Medium

    High

    High

    High

    D

    Low

    Low

    Medium

    Medium

    High

    E

    Low

    Low

    Medium

    Medium

    High