The minutes between a distant quake and the water.For anyone who lives where the ocean can rise.
Official warnings, deep-ocean buoys, and wave forecasts — gathered into one calm place, watching while you sleep.
A quake crosses an ocean in hours. The warning has to reach you first.
A distant earthquake sends a wave that can travel for hours before it arrives. Somewhere in that window, a warning center issues the call — and the only thing that matters is whether it reaches you in time to move. This is the watch that sits between the two.
Not to alarm you. To hand you the same picture the warning centers see, the moment they see it — so a distant tremor is never a surprise at your own shoreline.
Every signal that matters, in one view.
The official warnings from the Pacific and National Tsunami Warning Centers. The DART deep-ocean buoys reading the wave far out at sea. The travel-time forecasts. Usually scattered across agency pages — here they sit together, quiet until they aren't.
Not one feed. The whole ocean's early-warning network.
PTWC & NTWC bulletins, the moment they issue.
Deep-ocean sensors reading the wave far offshore.
Travel-time and arrival estimates, mapped.
The seafloor earthquakes that start it all.
The difference stated plainly, never blurred.
Alerts tuned to where you actually stand.
An undersea earthquake displaces the water column above it. Seismic networks read it in seconds — long before the wave is anywhere near land.
DART sensors on the deep-ocean floor feel the wave pass overhead and report its true height, turning a maybe into a measured fact.
PTWC and NTWC issue the warning. We carry it straight to you — no reinterpretation, always pointing back to the official source.
Free to watch. Paid to be told.
Coast alerts live inside Magna Earth, $14/mo or $129/yr — Earth alerts for the ground and water where you actually are.