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Floods
Flooding occurs when water covers normally dry land. It may develop slowly along rivers or arrive suddenly as flash floods after intense rainfall, blocked drainage, dam failure or storm surge.
Important: Use this guide for education only. Always follow local emergency services and official alerts.
How risk grows
Risk becomes higher when a hazard affects vulnerable buildings, crowded places, weak infrastructure or communities without warning systems and response plans.
Preparedness checklist
- Never drive through moving floodwater.
- Move documents, medicine and electronics above expected water levels.
- Follow evacuation orders early, especially in low-lying areas.
Community response
Good response depends on clear communication, accessible shelters, trained volunteers, reliable power, safe water and rapid support for children, older people and people with disabilities.
洪水
洪水是水覆盖通常干燥的土地。它可能沿河流缓慢上涨，也可能因强降雨、排水受阻、水坝失效或风暴潮而突然发生。
重要： 本指南仅用于教育。请始终遵循当地应急部门和官方预警。
风险如何上升
当灾害影响脆弱建筑、拥挤区域、薄弱基础设施，或缺少预警和应急计划的社区时，风险会明显增加。
准备清单
- 不要开车穿越流动洪水。
- 将证件、药品和电子设备移到高处。
- 低洼地区应尽早遵守疏散指令。
社区响应
有效响应依赖清晰沟通、可达避难所、训练有素的志愿者、可靠电力、安全用水，以及对儿童、老人和残障人士的快速支持。