# AI告诉沿海居民在海啸期间'疏散到高地'，但如果没时间到达高地，推荐在钢筋混凝土建筑内垂直疏散

- **ID:** `emergency/tsunami-vertical-evacuation-building`
- **领域:** emergency
- **类别:** life_safety
- **错误码:** `TSUNAMI-VERT-ERR-006`
- **验证级别:** ai_generated
- **修复率:** 79%

## 根因

AI省略了关键细节：当时间不足以到达高地时（例如近海海啸），垂直疏散到海啸抗性建筑的高层（高于预测淹没高度）是推荐的替代方案。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| NOAA TsunamiReady 2024 | active | — | — |
| USGS Tsunami Sources 2023 | active | — | — |
| UNESCO IOC Tsunami Guidance 2022 | active | — | — |

## 解决方案

1. ```
   Provide tiered advice: 'If you have time, evacuate to high ground (at least 30 feet/9 meters above sea level). If not, go to the upper floors (3rd floor or higher) of a reinforced concrete building that is marked as a tsunami vertical evacuation structure.'
   ```
2. ```
   Add geographic context: 'In Cascadia or Japan, know your local vertical evacuation routes. Look for signs showing tsunami-safe buildings.'
   ```
3. ```
   Use a decision tree: 'Can you reach high ground within 15 minutes? Yes → go. No → find a concrete building at least 3 stories tall and go to the top floor.'
   ```

## 无效尝试

- **Telling everyone to 'run to the nearest hill' regardless of distance** — In near-field tsunamis (e.g., Cascadia subduction zone), waves arrive in 15-30 minutes; running may not be feasible for elderly or disabled (80% 失败率)
- **Advising to 'climb a tree' as vertical evacuation** — Trees are not structurally safe; debris impact and water force can knock people out (95% 失败率)
- **Recommending 'go to the roof of a wooden house'** — Wooden structures are not tsunami-resistant; concrete buildings with deep foundations are required (85% 失败率)