Yahoo: “NASA technology is proving it can buy precious time in the bid for early detection of tsunamis, according to a recent article from Phys.org. Called GUARDIAN, the system detected a tsunami about 30 to 40 minutes before waves reached Hawai’i this summer (the name is short for GNSS Upper Atmospheric Real-time Disaster Information and Alert Network — with GNSS standing for Global Navigation Satellite System). The tech could help address the problem of limited advance warning for tsunamis, giving scientists and emergency officials more time to prepare. During a powerful magnitude 8.8 earthquake near Russia’s Kamchatka Peninsula in July, GUARDIAN caught wind of the approaching waves in as little as 20 minutes after the quake, via pressure distortions detectable in the atmosphere, per the news report. Though the tsunami did not lead to extensive damage in Hawai’i, the event served as a test of the system. “Those extra minutes of knowing something is coming could make a real difference when it comes to warning communities in the path,” said Siddharth Krishnamoorthy, a Jet Propulsion Laboratory scientist working on the project, per the article….”