Naples, in the unfortunate event of an evacuation from the Phlegraean Fields due to an urgent alarm about possible volcanic events, there have long been "twinning" arrangements with other regions of Italy that will host the fleeing population.
This is the complete list of twinning arrangements provided in the latest version of the Civil Protection plan.
- Pozzuoli - Lombardy
- Bacoli - Umbria-Marche
- Monte di Procida - Abruzzo/Molise
- Quarto - Tuscany
- Naples, San Ferdinando/Chiaia districts - Sicily
- Naples, Arenella district - Veneto
- Naples, Vomero district - Piedmont/Aosta Valley
- Naples, Chiaiano district - Friuli Venezia Giulia
- Naples, Soccavo district - Emilia Romagna
- Naples, Pianura district - Puglia
- Naples, Bagnoli district - Basilicata/Calabria
- Naples, Fuorigrotta district - Lazio
- Marano - Liguria
- Giugliano - Trento/Bolzano