Daily Mail on Instagram: "A tsunami warning has been issued after a huge magnitude 7.6 earthquake struck off Japan. Authorities warn that a maximum 10ft tsunami is expected to reach coastal areas, urging residents in low-lying zones to evacuate immediately and move to higher ground. Those in areas that are affected have been cautioned to stay away from coasts and river mouths, which could overflow. Officials have warned that in some areas, the waves could exceed the 'expected tsunami height'. Re