The magnitude 7.7 earthquake that hit Japan on Monday has renewed worries on Indonesia’s holiday island of Bali, which sits on the same Pacific Ring of Fire. Hours after the quake, the Japan Meteorological Agency issued a special advisory warning of a slightly elevated risk of a temblor with a magnitude of 8 or stronger in the coming days. It said there was a 1 per cent chance of a megaquake, compared with 0.1 per cent at other times.