22 Dec 2020

What does Ruapehu's Alert Level mean?

From Morning Report, 7:25 am on 22 December 2020

Ruapehu is officially at volcanic alert level 2.

GNS says the level was raised because they've noticed more activity on the mountain, and that it's not a forecast of future activity.

But what does alert level 2 mean?

Professor Shane Cronin is a volcanologist at the University of Auckland.