Indonesia's Anak Krakatau volcano erupted early Sunday, causing temporary flight suspensions at Jakarta's Soekarno-Hatta International Airport. The Indonesian Geological Agency had detected signs of volcanic activity the previous day, and the eruption occurred at 3:53 a.m. Sunday, lasting about 30 seconds. Volcanic ash spread across parts of Jakarta and the neighboring Lampung province, prompting the airport to halt all flight operations between 5:30 a.m. and 9:30 a.m. The suspension was later extended until 1:30 p.m. local time, affecting 209 aircraft movements and over 22,000 passengers. Flights to and from Singapore, Doha, Sydney, and Kuala Lumpur were most impacted, with 16 international flights canceled, seven delayed, and five rescheduled. The disruption also reached Bali, where 16 domestic flights were canceled. The eruption produced two major volcanic ash clouds. One plume reached 20,000 feet (6,100 meters) and drifted northeast, covering areas in Jakarta, Banten, West Java, and surrounding waters. A second, more powerful plume reached 50,000 feet (15,200 meters) and moved westward and northwestward, affecting parts of Banten, Lampung, Bengkulu provinces, the southern Sunda Strait, and sections of the Indian Ocean west of Sumatra. Anak Krakatau is situated in the Sunda Strait, between the islands of Java and Sumatra. Indonesia's disaster mitigation agency, BNPB, advised the public to remain calm but to stay alert. People were encouraged to wear masks and eye protection, limit outdoor activities, cover water sources, and drive carefully due to reduced visibility from volcanic ash. Several schools canceled activities on Saturday, and fishermen avoided going out due to the eruption. No tsunami warning was issued, though a tsunami in 2018 caused by Anak Krakatau's eruption resulted in at least 430 deaths in Sumatra and Java. Anak Krakatau, meaning "child of Krakatoa," formed in the area once occupied by the much larger Krakatoa volcano, which was destroyed in a series of eruptions in 1883. That event killed more than 36,000 people and was one of the deadliest volcanic disasters in history. Indonesia, located along the Pacific Ring of Fire—a region known for frequent earthquakes and volcanic activity—continues to face regular threats from natural disasters.