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Anak Krakatau erupts in Indonesia
Darwin Volcanic Ash Advisory Center said ash moved west and south, while authorities issued SIGMETs for the Jakarta and Melbourne flight information regions.
On Saturday, September 5, 2026, a high-level eruption at Anak Krakatau, Indonesia, ejected volcanic ash up to 15 km above sea level at 00:50 WIB, with Advisory 2026/165 tracking the plume moving west at approximately 93 km/h.
Prior to the eruption, the South Lampung Regency Disaster Management Agency reported that Anak Krakatau remained at Level III , with shallow magma dynamics assessed as very high and a 3 km exclusion zone maintained around the crater.
Satellite imagery identified two ash layers: the primary plume reached 15 km and moved west at approximately 74 km/h, while a second layer extended to about 5.5 km and traveled south at approximately 19 km/h.
SIGMETs were issued for the Jakarta and Melbourne flight information regions to alert aviators, though official sources reported no airport closures or flight cancellations as of 19:58 UTC on September 4.
The Geological Agency monitoring network recorded 174 eruption earthquakes, 714 emission events, and 851 hybrid earthquakes during the August 22–31 period, with sulfur dioxide emissions ranging from 715 to 2 922 tonnes daily.
According to the Ministry of Energy and Mineral Resources' Magma Indonesia report, at least 10 eruptions were recorded from Friday to early Saturday morning.