LOS ANGELES, July 30 (Xinhua) -- A massive earthquake struck off the coast of Russia Tuesday, sparking tsunami alerts in the United States, including Alaska, Hawaii, Guam and the West Coast.

VLADIVOSTOK, July 30 (Xinhua) -- Authorities in Russia's far eastern Sakhalin Region on Wednesday declared a state of emergency in the Severo-Kurilsk District following a powerful earthquake and ...