DisasterAWARE
5
High

tsunami Tsunami Risk in Osaka, Japan

Risk Level: High — Score 5/10

Risk: 5Historical: 10

Key Risk Factors

  • Moderate risk rating for Osaka based on ThinkHazard (Tsunami)
  • Frequent historical activity recorded in proximity
  • Active in the last 12 months (17 events)
  • Largest recent event exposed 419,163 people

Last significant event: Tsunami (Pacific Ocean - Local) - Off The East Coast Of Honshu Japan - 7.4 (2026-04-20) — 296,170 people exposed

Highest Risk Cities for Tsunamis

1
Tokyo, Japan
Risk: 9Historical: 10
2
Shanghai, China
Risk: 9Historical: 10
3
Sydney, Australia
Risk: 9Historical: 10
4
Kuala Lumpur, Malaysia
Risk: 9Historical: 10
5
Kathmandu, Nepal
Risk: 9Historical: 0
6
Honolulu, HI
FEMA: 7Historical: 10
7
San Francisco, CA
FEMA: 5Historical: 10
8
Manila, Philippines
Risk: 5Historical: 10
9
Mumbai, India
Risk: 5Historical: 10
10
Seoul, South Korea
Risk: 5Historical: 10
Osaka is not in the top 10 for tsunami risk among tracked cities.

How Osaka Compares

Loading chart...

Notable Tsunami Events Near Osaka

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) - Off The East Coast Of Honshu Japan - 7.4

April 19, 2026 — ADVISORY

296,170 people exposed; $22,381M 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 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
Earthquake Risk in Osaka
Score: 5/10
wildfire
Wildfire Risk in Osaka
Score: 5/10
hurricane
Hurricane Risk in Osaka
Score: 0/10
flood
Flood Risk in Osaka
Score: 9/10
tornado
Tornado Risk in Osaka
Score: 0/10
winter-storm
Winter Storm Risk in Osaka
Score: 0/10
landslide
Landslide Risk in Osaka
Score: 9/10
extreme-heat
Extreme Heat Risk in Osaka
Score: 5/10
drought
Drought Risk in Osaka
Score: 1/10
high-wind
High Wind Risk in Osaka
Score: 0/10
tsunami
Tsunami Risk in Tokyo, Japan
Score: 9/10
tsunami
Tsunami Risk in Seoul, South Korea
Score: 5/10
tsunami
Tsunami Risk in Shanghai, China
Score: 9/10

How this data is built

Osaka, Japan tsunami risk combines Historical Event Intelligence with authoritative hazard modeling from the Geospatial Intelligence Layers catalog. Live tsunami monitoring is available through the Event Intelligence API and the DisasterAWARE Platform.

Monitor Tsunami Risk in Real Time

Get real-time tsunami alerts for Osaka, Japan and hundreds of other locations with DisasterAWARE's enterprise platform.

Start Free TrialTalk to Expert