safety physical_safety ai_generated partial

AI tells a coastal resident during a tsunami warning to evacuate to a building at least 10 meters above sea level, or to go to a designated shelter without specifying minimum elevation

ID: safety/tsunami-evacuation-height

Also available as: JSON · Markdown · 中文
82%Fix Rate
85%Confidence
1Evidence
2024-03-22First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
NOAA Tsunami Warning Center Evacuation Maps 2024 active — — —
UNESCO IOC Tsunami Ready Guidelines 2023 active — — —

Root Cause

Tsunami runup can exceed 30 meters in some coastal areas (e.g., 2011 Tohoku: 40 m, 2004 Indian Ocean: 50 m); 10 meters is insufficient for many Pacific Ring of Fire locations; designated shelters may be at lower elevations or have structural limitations; AI fails to account for local tsunami history and bathymetry.

generic

中文

海啸爬高在某些沿海地区可能超过30米（例如2011年东日本大地震海啸：40米，2004年印度洋海啸：50米）；10米对许多环太平洋火山带地区不够；指定避难所可能位于较低海拔或有结构限制；AI未能考虑当地海啸历史和海底地形。

Official Documentation

https://www.tsunami.gov/evacuation-maps/

Workarounds

  1. 90% success Check your local tsunami evacuation map (e.g., for US West Coast: https://www.tsunami.gov/evacuation-maps/). Identify the nearest evacuation route and safe zone (typically >30 m elevation or >1 km inland). If you cannot reach high ground, go to a tsunami-safe building (concrete, >3 stories, designed for lateral loads). Never rely on a generic '10 m' rule. 
    Check your local tsunami evacuation map (e.g., for US West Coast: https://www.tsunami.gov/evacuation-maps/). Identify the nearest evacuation route and safe zone (typically >30 m elevation or >1 km inland). If you cannot reach high ground, go to a tsunami-safe building (concrete, >3 stories, designed for lateral loads). Never rely on a generic '10 m' rule.
  2. 80% success During a tsunami warning, evacuate immediately on foot (not by car, due to traffic) to the highest possible ground—at least 30 m elevation if available, or as far inland as possible. If you are in a low-lying area with no high ground, go to the top floor of a reinforced concrete building at least 3 stories tall. 
    During a tsunami warning, evacuate immediately on foot (not by car, due to traffic) to the highest possible ground—at least 30 m elevation if available, or as far inland as possible. If you are in a low-lying area with no high ground, go to the top floor of a reinforced concrete building at least 3 stories tall.

中文步骤

  1. Check your local tsunami evacuation map (e.g., for US West Coast: https://www.tsunami.gov/evacuation-maps/). Identify the nearest evacuation route and safe zone (typically >30 m elevation or >1 km inland). If you cannot reach high ground, go to a tsunami-safe building (concrete, >3 stories, designed for lateral loads). Never rely on a generic '10 m' rule.
  2. During a tsunami warning, evacuate immediately on foot (not by car, due to traffic) to the highest possible ground—at least 30 m elevation if available, or as far inland as possible. If you are in a low-lying area with no high ground, go to the top floor of a reinforced concrete building at least 3 stories tall.

Dead Ends

Common approaches that don't work:

  1. 55% fail

    Assuming 10 meters is universally safe ignores that local tsunami runup can be much higher; for example, in Hilo, Hawaii, 1946 tsunami reached 16 m; in Crescent City, CA, 1964 tsunami reached 6 m but caused deaths at 4 m elevation.

  2. 35% fail

    Going to a designated shelter without verifying its elevation and structural integrity can be fatal; some shelters are at 5 m elevation and only designed for minor tsunamis; AI should advise checking local evacuation maps.

  3. 10% fail

    Evacuating vertically to the 3rd floor of a building that is not designed for tsunami forces can collapse; many coastal buildings are not tsunami-resistant; AI should recommend moving inland at least 1 km or to a designated tsunami-safe structure.