A massive 8.8 magnitude earthquake off Russia's far eastern coast has triggered tsunami warnings across the Pacific.

The earthquake, which hit near Russia's Kamchatka Peninsula at about 11:25am local time on Wednesday (00:25 BST), is believed to be one of the most powerful ever recorded.

Around two million people were ordered to evacuate in Japan, Russia and Hawaii - but most warnings have since been downgraded.

Alerts were also issued in China, the Philippines, Indonesia, New Zealand and even as far as Peru and Mexico.

Videos have emerged showing large waves surging past buildings in the town of Severo-Kurilsk, Russia. Authorities said 4m (13ft) waves flooded the port and a fish processing facility, and vessels had been swept from their moorings.