Mount Anak Krakatau Volcanic Ash Still Spreading Over These Areas on Monday Morning

Volcanic ash from the eruption of Mount Anak Krakatau is still spreading this morning. The Meteorology, Climatology and Geophysics Agency (BMKG) recorded that ash from Mount Anak Krakatau has spread as far as the Jakarta area.

BMKG released data on the ash distribution as of 06:00 WIB. The data identified two clusters of volcanic dust spreading from Mount Anak Krakatau.

“Based on information from PVMBG and VAAC Darwin, as well as analysis of Himawari-9 RGB imagery on 7 September 2026 at 06:00 WIB, two clusters of volcanic dust from Mount Anak Krakatau have been identified,” BMKG said in its statement on Monday (7/9/2026).

The first cluster covers parts of Banten, West Java, Lampung, Bengkulu, the Indian Ocean to the west of Bengkulu, Lampung and Banten, and surrounding waters. The ash was recorded at a height of 15,000 feet, or 4.57 km, drifting towards the south-east to north-west.

“At this height, the ash spread has the potential to affect air quality and visibility in the affected areas,” it said.

Meanwhile, the second cluster covers the Indian Ocean to the west and south-west of Bengkulu, Lampung and Banten, moving away from Indonesian territory. The volcanic ash was recorded at a height of 50,000 feet, or 15.24 km, drifting towards the south-west to west.

“At this height, the ash spread mainly affects aviation, as it lies within aircraft flight paths,” it said.