Lake Taup is the largest lake in the country. One of the world's most hazardous volcanoes is beneath it.
Scientists say the ground above it is shifting as magma moves beneath the surface. They say that it won't erupt yet.
According to the study, the Taup volcano has been active 25 times in the past 12,000 years. Since the eruption of the supervolcano in 232CE, it's been quiet. It has been this way until now.
The ground in the north and south of the lake has fallen by 140mm over the last 42 years thanks to data collected in the lake. Short spurts of the ground rising in the northeast are used to punctuate periods of falling.
The authors say that the ground in the lake is shifting due to the movement of magma under the surface.
The study shows that Taup is an active volcano that is connected to the surrounding tectonics.
The authors stress the importance of closely monitoring Taup's activity and augmenting current data collection techniques to help predict a potential eruption.
How long has this been going on? Illsley- Kemp spoke to the New Zealand Herald. Is it going to stop soon? This tells us about the potential for future eruptions.
The eruption was 500 times stronger than an atomic bomb.