Tsunami expert reacts to alert readiness following 8.8 magnitude earthquake

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Tsunami expert Philip Liu examines the speed of alerts following the 8.8 magnitude earthquake off Russia's coast that led to tsunami alerts around the Pacific Rim. Subscribe to ABC News on YouTube: https://abcnews.visitlink.me/59aJ1G Watch 24/7 coverage of breaking news and live events on ABC News Live: https://www.youtube.com/watch?v=gN0PZCe-kwQ&ab_channel=ABCNews Watch full episodes of World News Tonight with David Muir here: https://youtube.com/playlist?list=PLQOa26lW-uI8ixlVw1NWu_l4Eh8iZW_