Table 7 Application of VoLREst results at GNS Science
Hourly risk of fatality for an individual at given distance | Action | Comment |
|---|---|---|
< 10−5 | Standard GNS Science fieldwork procedures apply; only staff members who accept the risk may go, and staff may change their mind at any time | Standard procedures include internal GNS Science-wide policies concerning: • Field safety (NZ and Overseas) • Personal protective equipment • Working on volcanoes • Working in natural geothermal areas • Working in alpine and bush areas • Helicopter use • Light aircraft use • Use of boats • Use of Unmanned Aerial Systems • Safe driving and use of GNS Science vehicles |
10−4 to 10−5 | Actions for < 10− 5 hourly risk of fatality level, and required authorisation from Head of Volcanology Department | A detailed workplan is required, with follow-up discussion as needed prior to approval |
10−3 to 10− 4 | Actions for < 10− 5 and 10− 4 to 10− 5 hourly risk of fatality levels, and required authorisation from Natural Hazards Divisional Director | Same comment as for 10− 4 to 10− 5 hourly risk of fatality level; authorization only granted in exceptional circumstances |
> 10− 3 | No access | At time of writing, this level of risk has 44not been calculated at a NZ volcano |