The U.S. Geological Survey said the epicenter of the quake was some 90 kilometers (60 miles) east of the Russian city of Kyzyl in the Tuva region of Siberia. It struck around 0617 GMT at an estimated depth of 11.7 km. It was the second strong quake to rock the region in two months. In December, coal mining operations in Russia's largest coal producing region, the Kuzbass, were suspended when a 6.9 magnitude quake hit near Kyzyl. Residents in Kyzyl's city centre gathered outside as the local emergencies ministry warned of potential aftershocks, the state RIA news agency reported.
Source: wiktionary