Mt Ruapehu crater lake temperature rises

Wednesday 17 December 2025 · 2 outlets · 2 reports · updated Wed 17 Dec 2025, 1:07pm

In this story GeoNet, Waikato Times

GeoNet reports that the temperature of Mt Ruapehu's crater lake has increased by 5C since early November. Minor yellow sulphur slicks and hot water upwellings have been observed. The volcano's alert level remains unchanged.

How they headlined it

10:45am1:07pm

1. NZ HeraldWed 17 Dec 2025, 10:45am

   GeoNet monitors Mt Ruapehu crater lake heating, alert level unchanged (opens in new tab)

2. StuffWed 17 Dec 2025, 1:07pm

   Upwellings of hot water and yellow sulphur sighted as Mt Ruapehu crater lake temperature rises (opens in new tab)