Anak Krakatau Volcano's Eruption Intensity Decreases, Volcanic Ash Moves Away from Indonesia

The intensity of the eruption of Indonesia's Anak Krakatau volcano has decreased, with a reduction in volcanic ash emissions, according to observations by the Meteorology, Climatology, and Geophysics Agency (BMKG). Faisal Fathani, head of BMKG, stated that the operational status of eight airports has been restored after paper tests, conducted periodically by the agency, showed no volcanic ash contamination. These airports include Soekarno-Hatta International Airport, Halim Perdanakusuma International Airport, Husein Sastranegara International Airport, Budiarto Curug Airport, Pondok Cabe Airport, Taufiq Kiemas Airport, Radin Inten II Airport, and Salakanagara Tanjung Lesung Airport. BMKG continues to monitor the real-time movement of volcanic ash in conjunction with satellite imagery and aviation meteorological data to ensure flight safety. Andri Ramdhani, acting deputy for meteorology at BMKG, reported that the volcanic ash is currently at an altitude of approximately 2,130 meters (7,000 feet) and is moving southwest. Its speed reaches up to 18.5 kilometers per hour, spreading towards the northwestern part of Banten province and the adjacent Indian Ocean. The weather around Anak Krakatau is generally clear to partly cloudy. Ardhasena Sopaheluwakan, acting deputy for geophysics, reported that tsunami gauges and radar observations have not shown any anomalies, indicating a low probability of a tsunami. Wave heights in the Sunda Strait region are predicted to range between 0.5 to 3 meters over the next seven days. The volcanic ash emission has been classified as a Strombolian eruption, characterized by a maximum amplitude of 48 mm and a duration of 19 seconds. BMKG is also observing geomagnetic disturbances and volcanic lightning, but their intensity has decreased compared to the previous night. BMKG, in collaboration with relevant agencies such as the National Disaster Management Agency (BNPB) and the Ministry of Transportation, is continuing the weather modification operation (OMC) that began on September 7. This operation involves cloud seeding and water mist spraying from aircraft, aiming to further reduce volcanic ash concentration in the atmosphere. BMKG urges the public to remain vigilant and calm regarding the impacts of the Anak Krakatau eruption. Residents in areas affected by volcanic ash are advised to limit outdoor activities and to wear masks and glasses when outdoors.