UPDATE:
Gelombang pasang di Anyer dan sekitarnya memang bukan tsunami karena aktivitas gempa tektonik. Namun hal tersebut DIDUGA tsunami akibat aktivitas gunung Anak Krakatau, setelah mendapat data dari Badan Geologi. #BMKG akan melakukan verifikasi lanjutan mengenai fenomena ini

— BMKG (@infoBMKG) December 22, 2018
"Update: the tidal wave in Anyer and surroundings is indeed not a tectonic earthquake activity because of the tsunami. However it is SUSPECTED a tsunami due to the activity of Mount Krakatau Child, after receiving data from the geological Agency. #BMKG will do a follow-up verification about this phenomenon"