See NASA’s GUARDIAN Catch a Tsunami

This animation shows how, following a massive earthquake off Russia on July 29, 2025, GUARDIAN flagged an incoming wave west of Hawaii some 32 minutes before it made landfall and was detected by tide gauges (shown in blue). Credit: NASA’s Scientific Visualization Studio

A new data visualization illustrates how an experimental NASA technology can provide extra lead time to communities in the path of a tsunami. Called GUARDIAN (GNSS Upper Atmospheric Real-time Disaster Information and Alert Network)...