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A volcanic eruption on September 6, 2026, forced temporary closures at Indonesia’s Soekarno-Hatta International Airport, Southeast Asia’s second-busiest hub, disrupting 373 flights and causing 167 cancellations. The ash cloud from Mount Anak Krakatau’s 25-hour eruption extended to 50,000 feet, prompting airlines like Singapore Airlines and Scoot to cancel flights between Jakarta and Singapore, with disruptions lasting into Monday.

The eruption of Mount Anak Krakatau on September 6, 2026, triggered volcanic ash clouds that forced temporary closures at Jakarta’s Soekarno-Hatta International Airport, Southeast Asia’s second-busiest aviation hub. According to Indonesia’s Directorate General of Civil Aviation, the ash cloud led to at least 373 flight disruptions, including 202 flights at the airport, with 167 cancellations. The volcanic activity, which lasted 25 hours from 11:07 p.m. on Friday to 12:04 a.m. on Sunday, resulted in ash detected at altitudes up to 50,000 feet westward and 20,000 feet eastward.

Indonesian authorities extended airport closures multiple times as they monitored the situation, with the Ministry of Energy and Mineral Resources noting that volcanic activity remained elevated despite the eruption ending. The ministry warned of potential hazards, including incandescent rock, heavy ashfall, and possible lava flows if eruptions resume. Soekarno-Hatta, which handles 3.24 million seats monthly, saw significant operational strain, with Singapore Airlines and Scoot canceling flights between Singapore and Jakarta, including nine scheduled for Monday.

The disruption highlights the vulnerability of high-capacity aviation hubs to natural disasters. Airlines face immediate revenue losses and reputational risks from canceled flights, while passengers endure logistical challenges such as refunds and travel delays. Indonesia’s meteorological agency confirmed ash spread over Jakarta and surrounding regions, extending into the Indian Ocean, further complicating recovery efforts.

Authorities maintained a 3-kilometer exclusion zone around the volcano and emphasized ongoing monitoring of volcanic activity. The prolonged ash cloud and elevated risk of further eruptions pose continued threats to flight safety and operational continuity, underscoring the need for robust contingency planning in aviation infrastructure.

The eruption of Mount Anak Krakatau disrupted 373 flights at Indonesia’s second-busiest airport, highlighting the operational risks of volcanic activity for aviation. While authorities maintain monitoring efforts, the unresolved threat of further eruptions and prolonged ash clouds remains a critical uncertainty for regional air travel and trade.

Topics: AIR TRAVEL, VOLCANIC ERUPTION, AVIATION DISRUPTION, REGIONAL TRAVEL, INDONESIA, FLIGHT DELAYS, AIRPORT OPERATIONS, NATURAL DISASTERS

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Source: CNBC