In Indonesia, The Sunda Strait tsunami killed at least 281 people and injured more than 1,016 others. The volcano Anak Krakatau, which lies roughly halfway between Java and Sumatra, has been spewing ash and lava for months. It erupted again just after 9 p.m. on Saturday and the tsunami struck at around 9.30 p.m., according to BMKG, Indonesia‘s meteorology, and geophysical agency.
Numerous hotels were destroyed and many visitors are expected to be victims of the tsunami.
he Jakarta governor has announced that the capital will be paying for the medical and funeral costs of Jakartans who were victims in the Sunda Strait tsunami that hit the Anyer coast in Banten province on Saturday evening.
Central Indonesian authorities have warned residents and visitors to halt activities along the beaches of the Sunda Strait, following what they called a volcanic earthquake on Anak Krakatau volcano that had triggered a tsunami in Banten and Lampung on Saturday night.
Meteorology, Climatology and Geophysics Agency (BMKG) chairwoman Dwikorita Karnawati said the agency had forecast extreme weather in the area until at least Wednesday.
“Weather forecasts suggest extreme weather, including strong winds and torrential rain, which may trigger high tide and last until at least Wednesday. Residents should not panic but please refrain from conducting any activities near beaches. We will announce later if we think the warning should be extended,” Dwikorita told a joint press conference in Jakarta on Monday.
She further advised residents to always refer to authorized agencies, particularly the BMKG, when seeking reliable information.
The authorities will also closely monitor Anak Krakatau, she said.
After studying data and satellite imagery, a joint team involving relevant institutions such as the Coordinating Maritime Ministry, the BMKG and the Geospatial Information Body concluded that Anak Krakatau’s eruptions had led to a material collapse, which triggered tremors equivalent to a magnitude-3.4 earthquake, she explained.
“The eruptions caused what we call an underwater landslide which, within only 24 minutes, triggered a tsunami. The resulting tremors were equivalent to a magnitude-3.4 earthquake with Anak Krakatau as the epicenter,” she said.
More than 90 percent of earthquakes occurring in Indonesia are tectonic earthquakes and the BMKG, the highest authority to manage early warning system, did not have immediate access to data related to volcanic earthquakes.
“The Jakarta administration will take care of the hospital bills of victims [who are Jakarta residents],” Jakarta Governor Anies Baswedan announced on Sunday at city-owned Tarakan hospital in Cideng, Central Jakarta, as quoted by kompas.com.
He urged the victims’ families not to worry about the costs.
Jakarta had sent ambulances to the disaster areas and was waiting for further requests for aid and assistance. A team of Jakarta Disaster Mitigation Agency (BPBD) personnel and firefighters from the Jakarta Fire Department (Damkar) had been sent to assist in recovery efforts.