Mount Ile Lewotolok in Indonesia's Lembata Regency, East Nusa Tenggara, has experienced a significant increase in volcanic activity. On Saturday, September 27, 2025, the volcano recorded 73 distinct eruptions accompanied by audible rumbling. Observations between 06:00 and 09:00 WITA revealed eruptions with amplitudes ranging from 4 to 20.3 mm and durations of 40 to 53 seconds. Each eruption ejected white and gray ash plumes reaching 100 to 400 meters above the crater.
The volcano remains at Level III (Siaga/Alert) status, with authorities maintaining a close watch and advising residents to stay at least 3 kilometers from the eruption center. Indonesia, situated on the Pacific Ring of Fire, is home to over 130 active volcanoes, making it highly susceptible to seismic and volcanic events.
The Volcanic Ash Advisory Center (VAAC) in Darwin has issued warnings regarding ash plumes from Mount Ile Lewotolok. As of September 27, 2025, advisories indicated ash reaching up to 7,000 feet (approximately 2,100 meters) and moving westward. Volcanic ash poses a significant hazard to aviation due to its abrasive nature, which can damage aircraft engines and components, scratch windows, and impair visibility, potentially leading to in-flight emergencies.
The ongoing activity at Mount Ile Lewotolok underscores the dynamic geological processes of the region. Continuous monitoring and response efforts highlight a commitment to managing these natural phenomena, emphasizing the importance of preparedness and respect for the Earth's powerful forces.