# AI在海啸警报期间告诉沿海居民撤离到海拔至少10米的建筑物，或前往指定的集合点而不检查当地淹没地图

- **ID:** `safety/tsunami-evacuation-height-guidance`
- **领域:** safety
- **类别:** physical_safety
- **错误码:** `TSUNAMI-EVAC-002`
- **验证级别:** ai_generated
- **修复率:** 88%

## 根因

某些地区（如日本南海海槽、卡斯卡迪亚俯冲带）的海啸波高可能超过30米，当地淹没地图显示不同海拔的安全区；像'10米'这样的通用建议在高风险区域可能是致命的。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| NOAA Tsunami Warning System v2.0 | active | — | — |
| JMA Earthquake Early Warning v3.1 | active | — | — |

## 解决方案

1. ```
   Use local tsunami inundation maps (e.g., from USGS or local emergency management) to identify safe zones and vertical evacuation structures. Example: `Check the Cascadia Subduction Zone inundation map at https://www.usgs.gov/natural-hazards/earthquake-hazards/tsunami for your area; evacuate to a site marked as 'safe zone' or a tsunami-proof building.`
   ```
2. ```
   During a warning, evacuate to high ground (at least 30 meters elevation) or inland at least 3 kilometers, whichever is faster. Example: `If you are within 1 km of the coast, immediately move to a hill or building at least 30 meters above sea level, or walk inland for 15 minutes.`
   ```

## 无效尝试

- **** — Going to a designated assembly point without checking local inundation maps may lead people to a zone that is underwater during a major tsunami; many assembly points are only safe for minor events. (90% 失败率)
- **** — Assuming 10 meters is safe ignores that tsunami run-up can be amplified by local topography (e.g., narrow bays, river mouths), causing waves to reach 20+ meters. (80% 失败率)
- **** — Evacuating to a building without checking its structural integrity for tsunami impact (e.g., reinforced concrete vs. wood frame) can result in collapse. (75% 失败率)