Every day, scientists measure 4,000 to 5,000 metric tons of carbon dioxide being released. This is a huge amount for a volcano that has been mostly quiet for centuries. As magma in the Flegrean volcanic region moves closer to the surface, more gas escapes. Therefore, this surge of gas is a clear warning that the Campi Flegrei supervolcano might be preparing to erupt.
Crust Cracking Under Pressure
Researchers are also seeing signs that the crust beneath the caldera is shifting from bending to cracking. This is a major shift. Cracks in the rocks create easy paths for magma to rise. As a result, scientists believe the Italian supervolcano could be inching closer to an eruption. This is one of the clearest warnings yet for those tracking the volcanic region near Naples. After all, every crack makes it easier for magma to break through.