Hitting at 1:17 p.m. local time (0617 GMT), the Russian temblor happened at a depth of 7.3 miles (11.7 kilometers), the USGS reported. Its epicenter was located 62 miles (101 kilometers) east of Kyzyl.
Striking at 10:35 a.m. local time (0235 GMT), the Taiwan tremor occurred at a depth of 13.9 miles (22.4 kilometers), the USGS reported. Its epicenter was 21 miles (34 kilometers) west-southwest of Taitung.
The Russian earthquake is believed to have caused neither casualties nor damage, according to RIA Novosti.
The Taiwan quake is thought to have caused only minor damage in the southern reaches of the island, and no tsunami warning was issued because of it, according to The Associated Press.