Mount Lewotobi Laki-Laki Erupts in Eastern Indonesia

Authorities in Indonesia have raised the alert for Mount Lewotobi Laki-Laki to its highest level following a volcanic eruption that shot ash approximately 10 kilometers (6.2 miles) into the sky. The eruption occurred in the early hours of Wednesday, October 15, 2025, with a previous minor eruption reported just two hours earlier.

The volcano, located on Flores Island in East Nusa Tenggara, stands 1,584 meters (5,080 feet) tall. Authorities have urged residents and tourists to stay at least 6 to 7 kilometers (3.7 to 4.3 miles) away from the site and remain prepared for potential evacuation.

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Volcanic Hazards and Safety Measures

Muhammad Wafid, head of Indonesia’s Geological Agency, warned that heavy rains could trigger volcanic mudflows, adding to the potential danger. The ash column from the eruption could disrupt airport operations and affect flight paths if it spreads further across the region.

Local authorities have temporarily suspended operations at Fransiskus Xaverius Seda Airport in Maumere, roughly 60 kilometers (37 miles) west of Mount Lewotobi. The airport closure is expected to last until Thursday, depending on the volcanic ash dispersion.

The country’s Centre for Volcanology and Geological Hazard Mitigation advised the public to remain calm and follow government guidance, urging people not to rely on unverified information circulating online.

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Recent Eruption History of Mount Lewotobi Laki-Laki

Mount Lewotobi Laki-Laki is part of Indonesia’s extensive volcanic network, with the country hosting more than 120 active volcanoes along the Pacific “Ring of Fire.” In July 2025, the volcano erupted again, sending ash 18 kilometers (11 miles) into the atmosphere, causing flight cancellations in Bali and disrupting air travel across the region.

Previously, in November 2024, a major eruption resulted in 10 fatalities and widespread damage to thousands of homes in nearby villages. These incidents highlight the recurring threat the volcano poses to local communities and infrastructure.

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Indonesia’s Vulnerability to Volcanic Activity

Indonesia sits in one of the most seismically active regions in the world. The Pacific “Ring of Fire” is characterized by frequent volcanic eruptions, earthquakes, and tsunamis. Volcanoes such as Mount Lewotobi Laki-Laki are closely monitored by the Geological Agency to provide early warnings and minimize casualties.

Authorities continue to monitor the volcano’s activity, with contingency plans ready for evacuation if necessary. Residents and tourists are urged to stay informed about local advisories and avoid traveling close to the eruption site.

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Conclusion: Ongoing Volcanic Risk in Flores

The latest eruption of Mount Lewotobi Laki-Laki underscores the ongoing risk of volcanic activity in eastern Indonesia. With volcanic ash capable of disrupting air travel and threatening nearby communities, vigilance and adherence to safety protocols remain crucial. Indonesia’s government and geological authorities continue to closely monitor the situation to mitigate the impact of this natural disaster.