TSU-WAVE • OPERATIONAL REPORTS

🌊 Tsunami Daily Reports

Operational recommendations and system status

Based on real-time data from NOAA DART • IOC • USGS

Latest Report: February 17, 2026

2026-02-17 FINAL OPERATIONAL VERSION
5
Zones Monitored
2
Critical Zones (CHI ≥ 0.8)
3
Moderate Zones (CHI < 0.6)
0
High Risk (0.6-0.8)

Zone Details

Zone Max CHI Status Population
Hilo Bay, Hawaii 0.564 MODERATE 45,000
Miyako, Japan 0.821 SEVERE 50,000
Banda Aceh, Indonesia 0.823 SEVERE 250,000
Khao Lak, Thailand 0.458 MODERATE 20,000
Crescent City, California 0.531 MODERATE 7,000
🔴 1️⃣ IMMEDIATE OPERATIONAL RECOMMENDATIONS (Short Term)

📍 Miyako, Japan

  • Activate high coastal alert protocol
  • Close low-lying coastal areas and waterfronts
  • Suspend nearshore navigation
  • Switch monitoring teams to high-frequency mode

📍 Banda Aceh, Indonesia

  • Activate high coastal alert protocol
  • Close low-lying coastal areas and waterfronts
  • Suspend nearshore navigation
  • Switch monitoring teams to high-frequency mode

No high risk zones detected

🛠️ 2️⃣ TECHNICAL RECOMMENDATIONS (Mid Term)
  • Add CHI temporal derivative (dCHI/dt): Not as new indicator, but as internal monitoring value. Helps distinguish between wave heading toward instability and wave peaking.
  • Guaranteed minimum warning window: 15 minutes - Extended warnings (20-25 min): Bonus, not guarantee
  • System limitations: Does not work with complex bathymetry or incomplete pressure data
🎯 3️⃣ STRATEGIC RECOMMENDATIONS (Long Term)
  • Complete independence from seismic data: System describes physical state, does not predict
  • CHI is sufficient: No need for new indicators at this stage
  • Report = Primary product: Algorithm stays behind the curtain, report drives decisions

📋 FINAL OPERATIONAL SUMMARY

2
CRITICAL ZONES (CHI ≥ 0.8)
Miyako, Japan (0.821)
Banda Aceh, Indonesia (0.823)
0
HIGH RISK ZONES (0.6-0.8)
3
MODERATE ZONES (CHI < 0.6)
"System ready operationally, improvable scientifically"
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Previous Reports

2026-02-16 CRITICAL
Zones: 5
Critical: 2
View Report →
2026-02-15 HIGH
Zones: 5
Critical: 1
View Report →
2026-02-14 MODERATE
Zones: 5
Critical: 0
View Report →