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TAG: GUARDIAN

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

Image: Wiltser/E+/Getty Images

Seen & Heard: Lighthouses no more, GPS mitigates natural disasters

August 7, 2023

Photo: buradaki/iStock/Getty Images Plus/Getty Images

Research Roundup: Atmospheric effects on GNSS

December 5, 2022

Photo: Tonga Meteorological Services, Government of Tonga

GNSS shows how volcanic eruptions cause ionospheric disruptions

February 14, 2022