{
  "id": "emergency/tsunami-vertical-evacuation-height",
  "signature": "AI tells coastal residents to 'evacuate to high ground' during a tsunami, but vertical evacuation in reinforced concrete buildings above 10 meters (33 feet) is also safe; 'high ground' may be too far for many",
  "signature_zh": "AI告诉沿海居民在海啸期间'疏散到高地'，但在钢筋混凝土建筑中垂直疏散至10米（33英尺）以上同样安全；'高地'对许多人可能太远",
  "regex": "(?:tsunami|vertical evacuation|high ground|evacuate).*?(?:height|floor|building|10 meter|33 feet)",
  "domain": "emergency",
  "category": "life_safety",
  "subcategory": null,
  "root_cause": "The AI overgeneralizes 'high ground' without considering vertical evacuation in tsunami-safe buildings (e.g., hotels, schools built to FEMA P-646 standards), which can be faster and safer than horizontal evacuation to distant hills.",
  "root_cause_type": "generic",
  "root_cause_zh": "AI过度泛化'高地'，未考虑在海啸安全建筑（如按FEMA P-646标准建造的酒店、学校）中垂直疏散，这比水平疏散到远处的山丘更快更安全。",
  "versions": [
    {
      "version": "FEMA P-646 2023",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "NOAA TsunamiReady Program v3.1",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "USGS Tsunami Inundation Maps 2024",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "If hill is >1 km away, tsunami wave may arrive before reaching it; traffic jams common",
      "fail_rate": 0.85,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Trees may uproot or break; height insufficient for large tsunamis (>10m); no structural integrity",
      "fail_rate": 0.95,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Wooden structures not designed for tsunami forces; may collapse or wash away",
      "fail_rate": 0.9,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "Identify nearest tsunami-safe building: look for concrete building with at least 3 floors (10m+). Go to 3rd floor or above. Example: In Seaside, OR, the Seaside Civic and Convention Center is a vertical evacuation structure.",
      "success_rate": 0.9,
      "how": "Identify nearest tsunami-safe building: look for concrete building with at least 3 floors (10m+). Go to 3rd floor or above. Example: In Seaside, OR, the Seaside Civic and Convention Center is a vertical evacuation structure.",
      "condition": "",
      "sources": []
    },
    {
      "action": "If no vertical evacuation building available, evacuate horizontally to high ground at least 30m (100 ft) above sea level, or 1 km inland. Use NOAA tsunami evacuation maps.",
      "success_rate": 0.85,
      "how": "If no vertical evacuation building available, evacuate horizontally to high ground at least 30m (100 ft) above sea level, or 1 km inland. Use NOAA tsunami evacuation maps.",
      "condition": "",
      "sources": []
    },
    {
      "action": "In earthquake-prone coastal areas, after strong shaking, immediately go to high ground or vertical evacuation building without waiting for official warning",
      "success_rate": 0.95,
      "how": "In earthquake-prone coastal areas, after strong shaking, immediately go to high ground or vertical evacuation building without waiting for official warning",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [
    "Identify nearest tsunami-safe building: look for concrete building with at least 3 floors (10m+). Go to 3rd floor or above. Example: In Seaside, OR, the Seaside Civic and Convention Center is a vertical evacuation structure.",
    "If no vertical evacuation building available, evacuate horizontally to high ground at least 30m (100 ft) above sea level, or 1 km inland. Use NOAA tsunami evacuation maps.",
    "In earthquake-prone coastal areas, after strong shaking, immediately go to high ground or vertical evacuation building without waiting for official warning"
  ],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": null,
  "official_doc_section": null,
  "error_code": "TSUNAMI-VERTICAL-ERR-004",
  "verification_tier": "ai_generated",
  "confidence": 0.87,
  "fix_success_rate": 0.85,
  "resolvable": "partial",
  "first_seen": "2024-02-28",
  "last_confirmed": "2024-06-01",
  "last_updated": "2024-06-01",
  "evidence_count": 1,
  "tags": [],
  "locale": "en",
  "aliases": []
}