CGTN photo
A magnitude-7.7 earthquake rippled the waters off the coast of Nikol'skoye, Russia late Monday night, the US Geological Survey said.
US Pacific Tsunami Warning Center has issued a tsunami warning with waves forecast to be less than 0.3 meters (1 foot) above the tide level for coasts in an area ranging from Russia to Hawaii.
The epicenter, at a depth of 11.7 kilometers, was initially determined to be at 54.2 degrees north latitude and 169.2 degrees east longitude.