Authorities in The Philippines and Indonesia have issued tsunami warnings after a powerful 7.4-magnitude earthquake struck off the coast of Mindanao in the southern Philippines early on October 10 multiple local sources are indicating.

This figure was later revised upwards to M7.6.

The Philippine Institute of Volcanology and Seismology warned that a “destructive tsunami” with “life-threatening wave heights” was expected, urging residents in coastal areas to move inland or to higher ground according to the BBC.

The Pacific Tsunami Warning Center has already said waves could reach up to three metres above normal tide levels in some parts of the Philippines and around one metre higher than normal in some areas of Indonesia.

The earthquake struck at 9:43 local time off Davao Oriental, according to the local INQUIRER.NET at a depth of just 10km.

The earliest the waves could reach the shore would be 11:43 local according to the BBC. It is believed they could then continue for several hours.

This is a breaking story and will be updated as information comes in.