Indonesia’s Mount Anak Krakatau erupted recently, sending fountains of glowing lava and large amounts of volcanic ash into the atmosphere. The eruption began late on September 4 and continued into September 6, with authorities reporting a spectacular lava-fountain phenomenon accompanied by loud volcanic activity.
The volcanic ash spread across parts of Java and surrounding areas, creating serious disruption to air travel. Several airports, including Jakarta’s Soekarno-Hatta International Airport, were temporarily closed because of the ash cloud. Nearly 3,000 flights were disrupted and around 341,000 passengers were affected during the crisis.
As of September 8, 2026, Jakarta’s main airport and four other airports have reopened as ash conditions improved. However, authorities continue to monitor Anak Krakatau because further eruptions remain possible.
Anak Krakatau remains under close observation, highlighting the continuing volcanic risks faced by Indonesia, one of the world’s most volcanically active countries.
