Honolulu beside a calm sea in 2017. A JPL technology recently detected and confirmed a tsunami up to 45 minutes prior to detection by tide gauges in Hawaii, and it estimated the speed of the wave to be over 580 miles per hour (260 meters per second) near the coast. (Photo: NASA/JPL-Caltech)

NASA’s GUARDIAN Tsunami Detection catches wave in real time

September 16, 2025

A massive earthquake and subsequent tsunami off Russia in late July tested an experimental detection system that had deployed a critical component just the day before.

This article is tagged with disasters, early detection system, earthquakes, GUARDIAN, JPL, NASA, tsunami warning system and posted in Featured Stories, Featured Stories, Latest News, Space & Earth

Photo: Tonga Meteorological Services, Government of Tonga

GNSS shows how volcanic eruptions cause ionospheric disruptions

February 14, 2022

On Jan. 15, Hunga-Tonga-Hunga-Ha’apai, an uninhabited volcanic island on the Tongan archipelago in the South Pacific Ocean, erupted […]

This article is tagged with GUARDIAN, ionosphere, Jet Propulsion Laboratory, JPL, Larry Romans, Leo Martire, Panagiotis Vergados, Siddharth Krishnamoorthy, Tonga, Tonga eruption, Tracking Systems and Application Section, tsunami warning system, volcanic eruption, volcano and posted in Featured Stories, Latest News, Space & Earth

TAG: tsunami warning system

NASA’s GUARDIAN Tsunami Detection catches wave in real time

September 16, 2025

GNSS shows how volcanic eruptions cause ionospheric disruptions

February 14, 2022

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TAG: tsunami warning system

NASA’s GUARDIAN Tsunami Detection catches wave in real time

September 16, 2025

GNSS shows how volcanic eruptions cause ionospheric disruptions

February 14, 2022