A massive undersea earthquake in Russia's Far East prompted a tsunami warning and unleashed tremors across Russia, including in Moscow 10,000km away, but caused no casualties or damage.
The US Geological Survey estimated the quake at magnitude 8.3 and placed its epicentre in the Sea of Okhotsk off the shore of the Kamchatka Peninsula at a depth of more than 600km.
Russia issued a tsunami warning for Sakhalin island and its region, urging residents to seek higher ground but the warning was later lifted with no reports of casualties.
The huge magnitude and great depth of the quake meant that its echoes were felt across the Eurasian continent, including in the Russian capital itself.