A western Japanese city on Shikoku, one of the country’s four main islands, is seeking to liven up its Awa Odori dance festival amid the inbound tourism boom partly by addressing a shortage of accommodation. The summer spectacle in Tokushima draws well over a million spectators to the area but the effect on the local economy has been rather limited due to the scarcity of hotels, preventing overnight stays for visitors. The traditional folk dance festival started Sunday and will last until Thursday amid caution following the country’s first-ever advisory on a potential megaquake in the Nankai T…