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Jakarta Post

The early warning that Sumatra never received

In the event of disasters, what protects people is not a perfect environment, but a reliable flow of information and a clear structure of action.

Melanton Hendra Siregar (The Jakarta Post)
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Hiroshima, Japan
Wed, December 3, 2025 Published on Dec. 1, 2025 Published on 2025-12-01T17:16:25+07:00

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A woman walks among tree trunks on the shore on Sunday following deadly flash floods and landslides, in Padang, West Sumatra. The death toll from floods that hit Indonesia this week has reportedly risen to more than 400 people. A woman walks among tree trunks on the shore on Sunday following deadly flash floods and landslides, in Padang, West Sumatra. The death toll from floods that hit Indonesia this week has reportedly risen to more than 400 people. (Reuters /Willy Kurniawan)

I

still remember a cold winter night in Hiroshima in 2021. It was past two in the morning when both of my phones suddenly erupted with an alarm so loud that it pulled me out of sleep.

The screens were filled with several lines of kanji that I could barely understand, especially in that half-awake moment. But the meaning was unmistakable. A strong earthquake was coming, and it was striking fast.

Barely three minutes later, the entire house began to shake violently. The warning had arrived before the danger did. It was frightening, but it was also strangely reassuring. A system had reached me in time.

Living in Hiroshima has shown me that disasters here are not treated as unpredictable shocks. They are expected, prepared for and practiced. Warnings do not arrive late. They are not uncertain. They are not debated. They are immediate, unified and trusted.

From my first weeks in campus, I noticed how disaster awareness is embedded in daily routines. In my language class, the teacher explained evacuation procedures alongside grammar.

On ordinary walks around the city, I would see clear signage pointing toward evacuation routes and shelters. School yards serve not only students but entire neighborhoods when emergencies happen. Public facilities display hazard information year-round, not only when a storm is approaching.

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Every household receives a printed hazard map. Rivers across the city are equipped with sensors that monitor water levels in real time. Public screens update residents about heavy rain or potential landslides.

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The early warning that Sumatra never received

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