The Center for Volcanology and Geological Hazard Mitigation (PVMBG) has officially raised the activity status of Mount Anak Krakatau from Level II (Vigilance) to Level III (Alert). This decision was made following a significant increase in volcanic activity, characterized by magma supply rising to the surface based on visual and instrumental monitoring by the Geological Agency of the Ministry of Energy and Mineral Resources.

In response to the upgraded status, the Class I Banten Harbor Master and Port Authority Office (KSOP) issued strict instructions to all shipping industry stakeholders in the Sunda Strait. All captains and marine transportation operators are required to increase vigilance against potential hazards such as eruptions, ejection of hot materials, and volcanic ash dispersion that could disrupt navigation channels.

In accordance with technical recommendations from PVMBG, the port authority has imposed a strict ban on all types of vessels approaching the active crater within a five-kilometer radius. In addition to the distance limit, captains are also required to regularly update information from relevant agencies such as BMKG and PVMBG as a basis for planning shipping routes to remain safe from ash exposure and other volcanic threats.

Furthermore, the authorities emphasized that the safety of passengers and crew is the top priority. Captains are urged to immediately coordinate with the Vessel Traffic Service (VTS) or the nearest harbor master if they encounter indications of danger in the area. This preventive measure is carried out as an integrated mitigation effort to ensure shipping safety in the busy Sunda Strait while the Alert status remains in effect.