An earthquake measuring 7.5 on the Richter scale struck off Russia's Kuril Islands on Wednesday, the United States Geological Survey (USGS) said.
The magnitude of the quake, which occurred at 2:49 am (UTC), was registered at a depth of 56.7 kilometres, about 219 kilometres southeast of the Russian town of Severo-Kuril'sk, the USGS said.
There were no immediate reports of casualties or damage to the property as a result of the quake.
Further details are awaited.
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