Phlegraean Fields Alert: Supervolcano in Italy Shows Signs of Increased Activity

Phlegraean Fields Supervolcano: Recent Activity and Importance

The Phlegraean Fields, located near Naples, Italy, are a supervolcano that is currently showing signs of increased activity. This area is one of the world’s top eight sources of volcanic carbon dioxide emissions.

Rising Gas Emissions at Solfatara Crater

Since 2005, Solfatara crater, a prominent site within the Phlegraean Fields, has emitted greater amounts of gas. Researchers, led by Gianmarco Buono from the Italian National Institute of Geophysics and Volcanology (INGV), are studying this increase. They aim to identify the source of the carbon dioxide, helping to better understand the volcanic and hydrothermal systems at work.

Understanding Supervolcanoes

Supervolcanoes, like those found in the Phlegraean Fields, can produce eruptions much more powerful than regular volcanoes. Such eruptions can eject over 1,000 cubic kilometers of material, potentially altering global climates.

Current Gas Emissions Data

Currently, Solfatara crater releases between 4,000 and 5,000 tons of carbon dioxide daily, comparable to the emissions from burning approximately 500,000 gallons of gasoline. Research suggests that 20% to 40% of this carbon dioxide comes from academic processes, such as the dissolution of calcite in surrounding rocks, while the remaining portion indicates activity from underground magma.

Mechanism of Gas Release

As magma rises closer to the earth’s surface, it loses pressure, leading to the release of gases like water vapor, carbon dioxide, and sulfur dioxide. By monitoring ground changes and gas emissions, scientists can assess volcanic activity levels. Increased emissions may signal potential volcanic events, though not all changes imply an imminent eruption.

Long-Term Monitoring Efforts

Since 1983, INGV has tracked gas emissions from Solfatara crater. Shifts in gas chemical signatures began around 2005, coinciding with a rise in local temperatures and geological disturbances, leading to a heightened alert level by 2012.

Significance of Research

Understanding the origins of carbon dioxide emissions is crucial for assessing volcanic risks and ensuring public safety. Buono’s research offers valuable tools for analyzing volcanic activity in various regions globally.

Future Outlook

Monitoring Solfatara crater is vital. Insights into whether the carbon dioxide comes from magma or rock interactions will enhance predictions of future volcanic activity. Ongoing research will continue to unravel geological mysteries, ensuring better preparedness for potential volcanic events.