Ruapehu Civil Defence and Emergency Management (CDEM) is holding a multi-agency training exercise based around a major volcanic eruption on Mt Ruapehu.
The exercise led by Ruapehu District Council (RDC) will involve all the usual emergency response agencies of fire, St John ambulance and the police.
They will be joined by the army, DOC, Ruapehu Alpine Lifts (RAL), GNS Science, health services, local iwi and media as well as civil defence personnel from outside the region.
Ruapehu emergency management officer Nick Watson said that the exercise was part of routine training that is regularly scheduled.
"The most recent volcano alert bulletin confirmed Te Wai ā-moe (the crater lake) temperature was cooling, so we want to be clear that there is no increased volcanic activity prompting the exercise," Watson said.