Tsunami Tracker

Live tsunami warnings, watches and advisories from the US NOAA/NWS, plus recent magnitude 6.0+ earthquakes worldwide from USGS — the large offshore quakes that can cause tsunamis — on one map. Free, no sign-up.

Checking tsunami alert status…
Loading active alerts from the US National Weather Service.
Recent large earthquakes (M6.0+, 30 days)

This is not a warning system. If you feel a strong or long earthquake near the coast, do not wait for an alert — move to high ground immediately. For official warnings follow tsunami.gov and your local emergency authorities.

100% free, no sign-up Your location stays in your browser Live from NOAA/NWS & USGS

How It Works

Open it and the current alert status and recent large quakes load — no account, no key.

1

Check the alert status

The banner shows any active tsunami warnings, watches or advisories from the US National Weather Service. Green means none are in effect — the usual state; red lists the active alerts and affected areas.

2

See the potential sources

The map and list show recent magnitude 6.0+ earthquakes worldwide — the large offshore quakes that can generate tsunamis — from USGS. Events NOAA has flagged for tsunami information are ringed and marked.

3

Focus on your coast

Tap "Near me" or search a place to sort the quakes by distance from you. For the full hazard picture, see the Live Disaster Map.

Frequently Asked Questions

Is there a tsunami warning right now?
The banner at the top of the tracker shows any active tsunami warnings, watches or advisories from the US National Weather Service, live. When none are in effect it says so — which is the normal state most of the time. The NWS feed covers US coasts, Alaska, Hawaii, the wider Pacific and the Caribbean. For other regions, follow your own national tsunami warning centre. LK Forge does not issue warnings; it displays the official NWS feed.
What is the difference between a tsunami warning, watch and advisory?
A tsunami warning is the most serious: a dangerous tsunami is expected or already happening, and people in coastal areas should move to high ground or inland immediately. A tsunami advisory means strong currents or waves dangerous to those in or near the water are expected, so stay out of the water and away from beaches and harbours. A tsunami watch means a distant earthquake has occurred and a tsunami is possible, so stay alert for it to be upgraded or cancelled. Always follow the instructions from your local emergency authorities.
What causes a tsunami, and which earthquakes are dangerous?
Most tsunamis are caused by large, shallow undersea earthquakes that suddenly lift or drop the sea floor — typically magnitude 7 or above, though magnitude 6-plus quakes can occasionally do it, and undersea landslides or volcanic eruptions can too. That is why this tracker shows recent magnitude 6.0+ earthquakes worldwide: they are the potential sources. Events that USGS and NOAA have flagged for tsunami information are highlighted, but most large quakes do not generate a damaging tsunami — a warning is only issued after the specific event is assessed.
What should I do if there is a tsunami warning?
If you are in a coastal area under a tsunami warning, or you feel a strong or long earthquake near the coast, do not wait for an official alert — move immediately to high ground or as far inland as you can, and stay there until authorities say it is safe. A tsunami is a series of waves, and later ones can be larger, so do not return after the first. Follow your local emergency authorities and official radio for instructions. This tracker is for awareness only and is not a substitute for official warnings.
Where does the tsunami and earthquake data come from?
Tsunami alerts come live from the US National Weather Service (api.weather.gov), which carries the official products of the NOAA Tsunami Warning Centers. The earthquakes come from the USGS real-time feeds — magnitude 6.0 and above over the last 30 days. Both are public feeds read directly in your browser; LK Forge measures nothing itself and adds no data of its own.
Is this a warning system, and is it free?
No — this is not an official warning system and cannot alert you before a tsunami. It shows the current official alert status and recent large earthquakes so you can stay aware. For real warnings, rely on your national tsunami warning centre, local emergency authorities and any official alerts to your phone. The tracker is completely free, with no account, no sign-up and no API key.

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