These strange occurrences were enough to indicate to experts that perhaps Colli Albani wasn’t extinct after all. So, do the volcanic hills outside Rome pose a real danger? Well, in July 2016 a team of scientists from Italy’s National Institute of Geophysics and Volcanology published a study of the region.
In order to gain a clearer picture about Colli Albani, volcanologist Fabrizio Marra and his colleagues collected samples there dating from the past 365,000 years. The team then shipped them almost 5,000 miles to Brian Jicha at the University of Wisconsin in Madison.