The area surrounding the southern Italian city of Naples and Mount Vesuvius was shaken by an earthquake on Sunday morning, the National Institute of Geophysics and Volcanology (INGV) said, putting the magnitude at a low level of 3.7. As has often been the case in recent months, the epicentre was said to be in Italy’s large volcanic region of the Phlegraean Fields, west of Naples. There were initially no reports of casualties, and the fire brigade reported no major damage. However, the earthquake and subsequent weaker tremors were clearly felt in several areas of Naples and the surrounding area…