Nearly a year after its destruction at the hands of Imu and the Mother Flame back in Chapter 1060, the most recent One Piece chapter finally revealed what happened to the spot where the Island of Lulusia once stood. As Chapter 1089 reveals, where Lulusia was once located now sits a gaping chasm in the ocean, causing the global sea level to rise by a meter.
Source:https://www.cbr.com/one-piece-1089-enies-lobby-secret-details/