There was no threat of a tsunami after an earthquake of magnitude 7.4 struck near the east coast of Russia's Kamchatka region on Saturday, the US National Weather Service's Pacific Tsunami Warning Center in Hawaii said. The United States Geological Survey pegged the earthquake at magnitude 7.4, with a depth of 39.5km (24.5 miles). The German Research Centre for Geosciences had the magnitude at 7.1, with a depth of 10km (6.2 miles). The tsunami warning centre had said earlier there was a threat of a possible...