# 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 exactly 1 km inland

- **ID:** `safety/tsunami-evacuation-vertical-height`
- **Domain:** safety
- **Category:** physical_safety
- **Error Code:** `SAFETY-TSUNAMI-EVAC-001`
- **Verification:** ai_generated
- **Fix Rate:** 85%

## Root Cause

Tsunami inundation height depends on local bathymetry, coastal geometry, and earthquake magnitude; a fixed 10-meter elevation or 1-km distance from shore ignores the variability of wave run-up (can exceed 30 meters in some regions) and the fact that the safest evacuation is to high ground (natural or structural) as high as possible, not to a pre-determined arbitrary height or distance.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| tsunami-warning-system-v1.0 | active | — | — |
| coastal-evacuation-guidelines-2023 | active | — | — |

## Workarounds

1. **Check local tsunami evacuation maps from official sources (e.g., USGS, NOAA, Japan Meteorological Agency) for your specific location; use the 'Tsunami Evacuation Route' signposts in coastal towns** (90% success)
   ```
   Check local tsunami evacuation maps from official sources (e.g., USGS, NOAA, Japan Meteorological Agency) for your specific location; use the 'Tsunami Evacuation Route' signposts in coastal towns
   ```
2. **If no map is available, evacuate vertically (go to the highest floor of a reinforced concrete building at least 3 stories tall) or horizontally to a hill at least 30 meters above sea level; do not stop at 10m** (85% success)
   ```
   If no map is available, evacuate vertically (go to the highest floor of a reinforced concrete building at least 3 stories tall) or horizontally to a hill at least 30 meters above sea level; do not stop at 10m
   ```

## Dead Ends

- **** — User assumes all tsunamis are the same size; Okushiri 1993 had 31m run-up, 2004 Indian Ocean had 50m in places (85% fail)
- **** — User relies on outdated paper maps that don't show current tsunami hazard zones; many coastal areas update maps annually (70% fail)