Active tsunami warnings
Japan sits on or near the Pacific/Indian Ocean subduction zones, where large undersea earthquakes can generate tsunamis. It is covered by the Pacific Tsunami Warning Center and regional warning systems. The strongest recent earthquake near Japan was M 6.7 near NEAR EAST COAST OF HONSHU, JAPAN.
Tsunami alert levels
Dangerous coastal flooding and powerful currents likely. Move to high ground or inland now.
A tsunami is possible. Stay alert and be ready to act.
Strong currents or waves dangerous near the water. Stay away from the coast.
Tsunamis in Japan: FAQ
Is there a tsunami warning in Japan right now?
There is no active tsunami warning being tracked for Japan right now. This page updates automatically from GDACS and the US NWS.
Can earthquakes near Japan cause a tsunami?
Japan sits on or near the Pacific/Indian Ocean subduction zones, where large undersea earthquakes can generate tsunamis. It is covered by the Pacific Tsunami Warning Center and regional warning systems. Large, shallow offshore earthquakes (roughly M7+) are the main tsunami trigger.
Where do tsunami warnings for Japan come from?
QuakeMate aggregates the Pacific Tsunami Warning Center, the US National Tsunami Warning Center, and the global GDACS system. Local agencies issue the official guidance.
Tsunami & earthquake alerts for Japan
QuakeMate sends real-time alerts for major earthquakes and tsunami warnings near you - free on iOS.