“As of today, September 5, 2026, at 4:40 a.m. Western Indonesian Time, the eruption is still ongoing, and rumbling can still be heard from the Krakatau Pasauran PGA Post,” the agency said in a statement, Anadolu Agency reported.
The volcano has continued erupting since July 2, when its alert status was raised to Level III, local media outlet Tempo reported.
“The height of the eruption column was not observed, but the bright red color of the eruption plume was clearly visible,” the report said.
***
MAGMA Indonesia, a digital platform providing real-time information on geological hazards across the country, said seismic activity associated with the eruption had been recorded since Friday morning. The seismograph registered a maximum amplitude of 33 millimeters and a duration of 14 seconds.
Three additional eruptions occurred on Friday morning, followed by a period of calm before another series of eruptions late Friday.
Six eruptions were recorded up to 12:01 a.m. local time on Saturday (1701 GMT Friday).
The Geological Agency said the eruption resembled a “lava fountain” that generates lava flows, adding that continuous eruptions lasting several hours are common.
The agency said it had received reports of booming sounds and vibrations in parts of West Java, Banten and Lampung occurring at the same time as Anak Krakatau’s activity. The phenomena are suspected to be related to the volcano’s eruption.
The agency said the volcano’s growth since the Dec. 22, 2018, eruption remains relatively small and added that there is no potential for a collapse large enough to trigger a tsunami.
Indonesia is located along the Pacific “Ring of Fire,” a seismically active zone of fault lines and volcanoes where earthquakes occur frequently.
