Hidden 'super volcano' could kill millions, scientists warn
By Antonio Denti
Benedetto De Vivo, a geochemist at Naples University, has said the drilling could cause an explosion.
The project also aims to study the cause of a phenomenon known as bradyseism which is a gradual raising and lowering of the Earth's surface because of deep volcanic activity. This is episodic but in the latest phase the ground has risen by 3.5 m (yards) in 15 years, the most since medieval times.