Hundreds of homes and other buildings were “heavily damaged” when the tsunami struck, almost without warning, along the rim of the Sunda Strait late on Saturday, Sutopo Purwo Nugroho, spokesman for the disaster mitigation agency, said.
Thousands of residents were forced to evacuate to higher ground. By 1040 GMT, the disaster agency had raised the death toll to 222 from 168, with 843 injured and 28 missing.
Coastal residents reported not seeing or feeling any warning signs, such as receding water or an earthquake, before waves of 2-3 meters (6-10 feet) washed ashore, according to media.
The timing of the tsunami, over the Christmas holiday season, evoked memories of the Indian Ocean tsunami triggered by an earthquake on Dec. 26 in 2004, which killed 226,000 people in 14 countries, including more than 120,000 in Indonesia.
Authorities warned residents and tourists in coastal areas around the Sunda Strait to stay away from beaches and a high-tide warning remained in place through until December. 25.
Anak Krakatau, an active volcano roughly halfway between Java and Sumatra, has been spewing ash and lava for months. It erupted again just after 9 p.m. on Saturday (December 22) and the tsunami struck at around 9.30 p.m., according to BMKG.
The eruption of Krakatau, previously known as Krakatoa, in 1883 killed more than 36,000 people in a series of tsunamis.