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Tsunami warning issued as 6.4-magnitude earthquake hits southern Indian Ocean

A shallow 6.4-magnitude earthquake hit the southern Indian Ocean on Saturday, US seismologists said, prompting Australia to issue a tsunami warning which was later cancelled. The US Geological Survey said the quake struck at a depth of seven kilometres……

South Africa creates offshore marine refuge

South Africa has turned two small islands in the southern Indian Ocean into its first offshore marine protected area, the environment ministry said Tuesday. The protected status for the windswept Prince Edward islands, lying 1,777 kilometres (1,104 miles) from the South African mainland, aims in part to help toothfish populations…