In 2004, a devastating tsunami struck the Indian Ocean but limited warning systems were in place. In this video, experts share how much progress we've made . 🌊 🌐Today is #TsunamiDay. Are YOU ready? https://t.co/Ey0SSFeWDT #AreYouReady24 #EarlyWarningsForAll @iocunesco https://t.co/RnR7NOV5Nf UNDRR Climate Change Science on Telegram by @ClimateChangeScience A @grttme project - Other backups: @Hallotme