A large sinkhole has opened up on a dairy farm in New Zealand, revealing rock deposits from a 60,000-year-old volcano.
The gap, which has captured the eye of volcanologists, is as deep as 4 double-decker buses (20 metres or 66 toes) and is 200 metres (660ft) lengthy.
It appeared after heavy rain close to the city of Rotorua on the North Island, a space famend for its geothermal exercise.
Geologists imagine that 1000's of years of rain eroded underground limestone, inflicting the bottom to break down.
"This is fairly spectacular, it is a lot greater than those I would usually see," volcanologist Brad Scott stated.
Mr Scott instructed TVNZ the dairy farm was located above the crater of a dormant volcano.
The filth within the backside of the sinkhole was "the unique 60,000-year-old volcanic deposit that got here out of this crater", he stated.
The farmer, Colin Tremain, stated it had appeared in a single day and was noticed by an employee on a morning run to deal with the cows.
Similar sinkholes are widespread on his farm, Mr Tremain added, however that is the biggestand there was nothing he may do to cease his land disappearing.
He instructed Radio NZ he may "put fence round it and neglect about it" however it will be a "waste of time filling it in".