An earthquake of magnitude 7.6 struck offshore in the southern Philippines on Friday, the country’s seismology agency said, with a tsunami warning issued and people in nearby coastal areas urged to evacuate to higher ground.The Phivolcs agency warned of damage and aftershocks after the strong offshore quake, which struck in waters off Manay town in Davao Oriental in the Mindanao region. It said the quake happened at a depth of 10km (six miles).The agency warned people living in coastal towns...