9
Extreme
Tsunami Risk in Tokyo, Japan
Risk Level: Extreme — Score 9/10
Risk: 9Historical: 10
Key Risk Factors
- High risk rating for Tokyo based on ThinkHazard (Tsunami)
- Frequent historical activity recorded in proximity
- Active in the last 12 months (13 events)
- Largest recent event exposed 419,163 people
- Coastal location within tsunami inundation zone
Last significant event: Tsunami (Pacific Ocean - Regional) - Hokkaido Japan Region - 7.6 (2025-12-08) — 316,050 people exposed
Highest Risk Cities for Tsunamis
1
Tokyo, Japan
Risk: 9Historical: 10
How Tokyo Compares
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Notable Tsunami Events Near Tokyo
Tsunami (Pacific Ocean - Local) - Kyushu Japan - 7.1
August 7, 2024 — ADVISORY
419,163 people exposed; $33,527M capital exposed
Tsunami (Pacific Ocean - Regional) - Hokkaido Japan Region - 7.6
December 7, 2025 — ADVISORY
316,050 people exposed; $22,409M capital exposed
Tsunami (Pacific Ocean - Local) - Near The East Coast Of Honshu Japan - 7.2
March 19, 2021 — ADVISORY
Impact data not available
Tsunami (Pacific Ocean - Local) - Near The East Coast Of Honshu Japan - 7.3
March 15, 2022 — ADVISORY
Impact data not available
Tsunami (Pacific Ocean - Local) - Near The West Coast Of Honshu Japan - 7.4
December 31, 2023 — ADVISORY
Impact data not available
Tsunami Preparedness Tips
- 1.Know your evacuation route to higher ground — practice it regularly
- 2.If you feel a strong earthquake near the coast, move inland immediately
- 3.Heed official tsunami warnings and never go to the beach to watch
- 4.Know the natural warning signs — rapid sea level drop, unusual ocean behavior
- 5.Have a go-bag ready with essentials for quick evacuation
Related Pages
Earthquake Risk in Tokyo
Score: 9/10
Wildfire Risk in Tokyo
Score: 9/10
Hurricane Risk in Tokyo
Score: 0/10
Flood Risk in Tokyo
Score: 9/10
Tornado Risk in Tokyo
Score: 0/10
Winter Storm Risk in Tokyo
Score: 0/10
Landslide Risk in Tokyo
Score: 9/10
Extreme Heat Risk in Tokyo
Score: 5/10
Drought Risk in Tokyo
Score: 3/10
High Wind Risk in Tokyo
Score: 0/10
Tsunami Risk in Osaka, Japan
Score: 5/10
Tsunami Risk in Seoul, South Korea
Score: 5/10
Tsunami Risk in Shanghai, China
Score: 9/10
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