{"id":9319,"date":"2025-12-08T14:00:30","date_gmt":"2025-12-08T07:00:30","guid":{"rendered":"https:\/\/ligaasuransi.com\/?p=9319"},"modified":"2025-12-11T11:22:48","modified_gmt":"2025-12-11T04:22:48","slug":"mengenali-pemicu-meteorologis-di-balik-banjir-dan-longsor-sumatera-2025-ketika-alam-bergerak-di-luar-kendali-manusia","status":"publish","type":"post","link":"http:\/\/ligaasuransi.com\/en\/mengenali-pemicu-meteorologis-di-balik-banjir-dan-longsor-sumatera-2025-ketika-alam-bergerak-di-luar-kendali-manusia\/","title":{"rendered":"Recognizing the Meteorological Triggers Behind the 2025 Sumatra Floods and Landslides: When Nature Moves Beyond Human Control"},"content":{"rendered":"

Dear readers and L&G Friends, on behalf of ourselves and the entire L&G family, we extend our deepest condolences to all the victims affected by the floods and landslides in Sumatra. We pray that the souls of those who died will be accepted by Allah SWT. May those who are injured and disabled be granted a speedy recovery. And to the families who have lost loved ones, may Allah replace them with strength, fortitude, and new hope, and reunite those who are still missing.<\/span><\/p>\n

As individuals and companies involved in risk management and insurance, allow us to share our perspectives and insights that may be helpful in navigating this situation. To provide a more comprehensive and structured discussion, we have presented them in five articles. We hope this series provides insight and is part of our collective effort to recover.<\/span><\/p>\n

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When the Sky Sends a Sign<\/span><\/h3>\n

The first rain fell as a simple drizzle. In the valleys and hills of Sumatra’s west coast, residents were accustomed to the sound of raindrops hitting tin roofs, the scent of wet earth seeping into their homes, and the rising river currents. But in late November 2025, the downpour turned into a relentless roar. Within hours, the dark sky settled like a thick black sheet, obscuring the entire horizon. Rivers overflowed, carrying tree trunks dragged down from upstream, and from the hills came a long, rumbling sound\u2014a sign of the ground beginning to move.<\/span><\/p>\n

Within hours, villages were submerged. Highways were cut off. Bridges collapsed. Flash floods and landslides struck dozens of districts in Aceh, North Sumatra, and West Sumatra. Thousands were displaced. Hundreds lost their families. It all seemed to happen too fast, too massive, too devastating to be explained by “ordinary rain.”<\/span><\/p>\n

Many people ask:<\/span>\u201cHow could this disaster be so big? What exactly happened?\u201d<\/span><\/i><\/p>\n

To understand this tragedy, we must look further up\u2014to the atmosphere, to the oceans, to global climate change, which is no longer just a theory, but a reality haunting many countries.<\/span><\/p>\n

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Meteorological Triggers: When Sky and Sea Collaborate to Create Disaster<\/span><\/h3>\n
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  1. Extreme Rainfall and Atmospheric Anomalies<\/b><\/li>\n<\/ol>\n

    One of the main causes of the 2025 Sumatra floods and landslides was extreme rainfall that fell in a very short duration. The Meteorology, Climatology, and Geophysics Agency (BMKG) recorded that rainfall volume in the last few days of November reached a record high in the last 20 years.<\/span><\/p>\n

    This phenomenon does not occur in isolation. Several meteorological factors are at work:<\/span><\/p>\n