Anak Krakatau ash reaches Jakarta as residents urged to wear N95 masks

Volcanic ash from Mount Anak Krakatau reached Jakarta on September 6, 2026, prompting the city administration to urge residents to protect their lungs and eyes. Jakarta Governor Pramono Anung said the volcano remained at alert level III, or standby, as the provincial government coordinated with the central government, BMKG and other agencies to monitor the ash.

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At present, volcanic ash from Anak Krakatau has spread to several areas of Indonesia, including Jakarta.

Residents in affected areas were told to wear masks or other protection outdoors, close doors and windows, and cover water sources to prevent contamination. Officials also advised limiting outdoor activity when the ash appeared dense. Ash should be dampened before removal so that particles do not become airborne again, but residents should avoid excessive water because clumped ash can block drains and cause flooding.

Jakarta’s Health Agency warned that volcanic ash is more than ordinary dust. Its fine particles can contain silica and abrasive volcanic glass, potentially causing coughing, throat irritation and shortness of breath. Exposure can also worsen asthma and chronic obstructive pulmonary disease, while irritating the eyes and skin.

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Wet the ash before cleaning it so that the particles do not become airborne again.

The agency recommended KN95 or N95 masks and protective glasses for people who must go outside. After returning home, residents should shower, wash their hair and change clothes. Children, older people, pregnant women and those with respiratory illnesses were urged to take particular care. Anyone experiencing breathing difficulty, worsening cough, chest pain or deteriorating vision should seek medical attention promptly.

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Seek care at the nearest health facility immediately if you experience respiratory symptoms or worsening vision.