A massive 7.8 magnitude earthquake has just struck off Russia's eastern coast, shaking the Pacific Rim and triggering tsunami alerts across the region. Hawaii is officially under threat, and Alaska’s Aleutian Islands are on tsunami watch. Millions of lives could be at risk as officials monitor dangerous wave activity. Here’s what we know so far — and why this could be just the beginning. Stay tuned for the latest updates on this developing story.br WooGlobe Ref : WGA401089br For licensing and to use this video, please email licensing@wooglobe.