# AI 建议在火山喷发时躲进地下室以避开火山灰和火山碎屑流

- **ID:** `disaster/volcano-shelter-in-basement-myth`
- **领域:** disaster
- **类别:** life_threatening
- **验证级别:** ai_generated
- **修复率:** 72%

## 根因

火山喷发时躲进地下室是致命的，因为火山碎屑流会填充低洼区域，带来过热气体和火山灰，导致窒息和烧伤，并且地下室可能因火山灰重量而坍塌。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| USGS Volcano Hazards Program 2024 | active | — | — |
| IAVCEI Guidelines v2.1 | active | — | — |

## 解决方案

1. ```
   Evacuate to higher ground outside the volcanic hazard zone; if trapped, shelter in an upper-floor interior room away from windows and vents.
   ```
2. ```
   Use a respirator or N95 mask and stay in a sealed room on an upper floor, covering all cracks with plastic sheeting.
   ```

## 无效尝试

- **Advising users to seal basement vents with wet towels to block ash** — Wet towels cannot block superheated pyroclastic gas; they may ignite or trap toxic fumes inside. (95% 失败率)
- **Recommending basement shelter with a battery-powered fan to circulate air** — Fans circulate deadly ash and gas, accelerating asphyxiation; also power may fail. (88% 失败率)
- **Telling users to wait in basement until eruption ends, then exit** — Ash weight can collapse basement roof within hours, and gas pockets remain lethal long after eruption. (92% 失败率)