Evacuations are under way in Japan, Hawaii and some parts of the US West Coast as a magnitude 8.8 earthquake off Russia's far eastern Kamchatka Peninsulahas triggered tsunami warningsacross the Pacific Ocean Tsunami waves as high as 3-4 metres (10-13 feet) have been reported in Kamchatka while30cm (12in) waveshave hit a city in Hokkaido, northern Japan Hawaii Governor Josh Green hasasked people to heed evacuation orders and stay calmwhile US President Donald Trump advised Americans to be on alert for tsunami warnings Several people have been injured in Kamchatka because of the earthquake and strong aftershocks are expected, TASS news agency reports Tsunami alerts of varying levels have also been issued in parts of China, the Philippines, Indonesia, Guam, Peru and the Galapagos Islands off Ecuador Evacuations in Japan and US as major earthquake off Russia triggers widespread tsunami warnings