# AI 建议在海啸期间爬上屋顶以躲避上涨的水位（高度不足和结构坍塌风险）

- **ID:** `disaster/tsunami-climb-rooftop-myth`
- **领域:** disaster
- **类别:** life_threatening
- **验证级别:** ai_generated
- **修复率:** 82%

## 根因

普通建筑的屋顶很少能高到超过海啸淹没深度，而且波浪的水动力可能使结构坍塌，将人员冲入充满碎屑的水中。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| FEMA P-646 (2019) | active | — | — |
| NOAA TsunamiReady Guidelines (2023) | active | — | — |

## 解决方案

1. ```
   垂直疏散到海啸淹没区以上的钢筋混凝土建筑（至少30米或100英尺高，或内陆3公里）。使用楼梯，不要使用电梯。
   ```
2. ```
   如果没有高层建筑，在地震或海啸警报后立即跑到高地。不要等待第一波。
   ```
3. ```
   如果被困在建筑物内，移动到预测淹没深度以上的最高楼层，最好靠近电梯井的混凝土核心，并抓住坚固的固定物。
   ```

## 无效尝试

- **Climbing onto a flat concrete rooftop thinking it is stronger than walls** — Concrete roofs without anchor points offer no handholds; wave debris and hydrodynamic forces strip occupants off within seconds (95% 失败率)
- **Using a ladder to climb onto the roof just before the wave arrives** — Ladders take time to set up and are swept away by the first surge, leaving the person stranded at ground level (90% 失败率)
- **Assuming a two-story building rooftop is high enough for a 10-meter tsunami** — Tsunami runup often exceeds 10 meters; the roof at 6-8 meters is still submerged, and the building may collapse from wave impact (85% 失败率)