817 Phlegraean Fields: extreme degassing and offshore quakes, rising pressure

23 Feb 2026The Phlegraean Fields are experiencing extreme degassing, with intense steam emissions and high temperatures at the Pisciarelli Fumarole and Solfatara crater. Offshore earthquakes in the Gulf of Pozzuoli suggest a redistribution of internal pressure, likely due to the migration of hot fluids and gases. These factors, combined with ongoing ground uplift and persistent seismicity, indicate a highly active volcanic system retaining energy.