Predicting dangerous activity (IMAGE) University of Bristol Caption Researchers from Italy's National Institute of Geophysics and Volcanology (INGV) and the University of Bristol use historical records to estimate the frequency of these bigger Strombolian paroxysms and investigate if the volcano has its own eruption 'memory' . Credit Pixabay Usage Restrictions https://pixabay.com/service/license/ License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.