Campi Flegrei Caldera Complex Photo by NASA (image) Geological Society of America Share Print E-Mail Caption The Campi Flegrei caldera cluster. Credit: NASA Earth Observatory image by Jesse Allen and Robert Simmon, using EO-1 ALI data from the NASA EO-1 team, https://visibleearth.nasa.gov/view.php?id=80108. Credit Credit: NASA and Geology. Usage Restrictions Credit: NASA and Geology. Share Print E-Mail 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.