On September 10, 2025 Bali experienced one of its worst flooding events in history, triggering the provincial government and the National Emergency Management Agency to declare a state of emergency. Severe flooding across Denpasar, Kuta, and surrounding districts, inundated homes and major roads, and forced evacuations.
Within 24 hours, over 130,000 people used PetaBencana.id to view and share real-time flood updates, as the platform turned into a vital lifeline for residents, volunteers and authorities to coordinate safe navigation and to prioritize evacuation.
Residents in Perumahan Kalista and Kampung Jawa posted urgent updates on rising water levels along the Ayung and Tukad Badung rivers. These reports enabled first responders to direct evacuation teams to the riverside settlements before floodwaters became impassable.
Motorists shared images of flooded stretches of Jl. Sunset Road and Jl. Kayu Aya. PetaBencana’s live map allowed residents to avoid gridlocked intersections and reroute around submerged sections of the road.
In Kesiman Kertalangu, residents reported that 18 homes in Perumahan Pesona Kartika Tohpati were fully inundated. These crowd-sourced reports were used by volunteers to organize sandbagging and to assist families in relocating to higher ground.
Updates about the overflow of Sungai Taman Pancing guided responders in deploying boats and assisting families trapped along Jl. Taman Pancing Barat–Timur.
Emergency services confirmed that PetaBencana data was used alongside official coordination channels to deploy rescue teams and manage traffic flow. For many residents, the platform became a critical navigation tool that reflected rapidly changing conditions.
The intensity of the flood cannot be explained by rainfall alone. In urban centers such as Denpasar and Kuta, rapid development has left drainage systems unable to absorb sudden runoff, while climate scientists warn that extreme rainfall events like this are becoming increasingly frequent across Indonesia.
In many of these areas, residents reported water levels reaching up to an adult’s chest or head height, leaving entire housing complexes inundated and dozens of roads impassable. BMKG (Meteorology, Climatology, and Geophysics Agency) has warned of continued heavy rainfall across Bali in the coming days. Communities are urged to remain alert, monitor official advisories, and make use of PetaBencana.id to share and access real-time information on flooding.
“Today’s events underscore how quickly conditions can change,” said Nashin Mahtani, Director of Yayasan Peta Bencana (Disaster Map Foundation). “We encourage everyone to use the platform to report flooding in their neighborhoods and to check the map before traveling, so that together we can keep each other safe. Each report is an act of solidarity, together they give us the power to protect our families and to support one another.”
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