Stephen Hicks 🇪🇺 on X: "Turns out that what @helenjanisz was prob seeing on the @raspishake stations in Hawaii+Tahiti is a "T-phase" from yesterday's M7.8 Alaska quake. This is an acoustic wave
SOFAR channel - Wikipedia
SOFAR channel - Wikipedia
SOFAR channel - Wikipedia
Minute Earth video explains the “SOFAR” channel, that CTBTO uses to listen for underwater nuclear tests. | CTBTO
Research at Exeter on X: "As the temperature of the ocean decreases, the speed of sound decreases too. Mid-ocean sounds can get trapped in channels because of the way sound bends. Whales