Indonesia’s Anak Krakatau volcano eruption is followed by the appearance of two new small landmasses in the surrounding waters, according to reports based on satellite observations. The formations are seen in the volcano’s water-filled caldera area, where Anak Krakatau sits.
Multiple outlets cite the same finding: evaluations of European Space Agency Sentinel satellite imagery show two features resembling islands. One outlet, quoting Indonesia’s Geological Agency, describes the formations as located hundreds of metres apart on opposite sides of the crater—one to the northwest and one to the southeast—lying roughly along a line through the volcano’s caldera. Distances reported vary by outlet, including figures of about 760 metres and about 495 metres from the volcano.
News coverage also provides broader context for what the appearances could mean. One account says it is too early to call the islands “children” of Anak Krakatau and that further research is needed to determine whether they emerge from the caldera base, as Anak Krakatau did, or form from volcanic deposits. The September eruption is also described as lasting about 25 hours, producing ash and disrupting flights, with authorities maintaining a safety exclusion zone near the eruption centre.
