In 1978 it was decided that the line could be extended to Scampia and Piscinola , and the funding was provided by the European Community . By 1980 , the line had reached Piazza Vanvitelli , but on 23 November of that year , the Irpinia earthquake struck nearby Conza , causing extensive damage and loss of life . It was then advised that plans would have to be adapted to deal with possible future earthquakes . The European Union funded 33 % of the total expenditure for this additions to the plans . However , in the mid 1990s it emerged that elements of the Camorra had been involved in syphoning millions of lire of this funding
Irpinia earthquake
1980 Irpinia earthquake
Line 1 (Naples Metro)