TOKYO - Japan's Meteorological Agency says a magnitude 6.6 earthquake struck the central, mountainous part of the country hours after a massive quake hit off the country's northeastern coast.
Dozens of aftershocks have rattled Japan's northeast since Friday's magnitude 8.9 temblor, but the most recent quake was in an entirely different location.
The latest quake hit early Saturday at a depth of six miles (10 kilometers), about 105 miles (170 kilometers) north of Tokyo.
It caused buildings in Tokyo to sway. There were no immediate reports of damage.