Tekno Netral
BMKG: Aktivitas Anak Krakatau tak picu anomali gelombang Selat Sunda
BMKG memastikan aktivitas erupsi Gunung Anak Krakatau hingga Selasa tidak memicu anomali gelombang di Selat Sunda, dengan probabilitas tsunami berada di bawah 50 persen berdasarkan pemantauan 20 tsunami gauge dan HF Radar. Tinggi gelombang terpantau stabil pada kisaran 0,5–3 meter dengan prakiraan cerah hingga cerah berawan selama 8–13 September 2026, sementara BMKG bersama BNPB dan Kemenhub menjalankan Operasi Modifikasi Cuaca untuk membersihkan abu vulkanik menggunakan lima sorti penerbangan Cessna Caravan. BMKG tetap meminta masyarakat terdampak sebaran abu membatasi aktivitas luar rumah serta menggunakan masker dan kacamata pelindung.
Poin-Poin Utama
- BMKG reported Anak Krakatau eruptions through Tuesday caused no sea wave anomalies in Selat Sunda.
- BMKG used 20 tsunami gauges and HF Radar Arrays in Carita and Tanjung Lesung for monitoring.
- Tsunami probability registered low category, below 50 percent.
- No significant sea level rise or surface current pattern changes detected indicating potential tsunami.
- Wave height in Selat Sunda stable, forecast 0.5 to 3 meters.
- Weather forecast for September 8-13, 2026: clear to partly cloudy.
- BMKG executed Weather Modification Operation (OMC) to clear volcanic ash from atmosphere.
- PVMBG data Tuesday at 07.49 WIB: Anak Krakatau recorded new strombolian eruption, small category.
- Eruption had maximum amplitude 48 mm, duration 19 seconds.
- Geomagnetic and volcanic lightning disturbance intensity decreased.
- Five OMC flight sorties conducted using two Cessna Caravan aircraft.
- Aircraft operated from Pondok Cabe and Halim Perdanakusuma airport posts.
- One NaCl powder seeding sortie, one CaCl2 liquid seeding sortie executed.
- Three water mist spraying sorties applied directly to atmosphere.
- BMKG urged residents in ash-affected areas to limit outdoor activities and wear masks and protective goggles.
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