Japan Quake Injures Dozens

A powerful earthquake jolted north-central Japan early today, injuring over 100 people, according to initial reports. The 6.8 quake collapsed 31 buildings on Japan's main Honshu island, according to CNN. Thousands of homes lost power in a blackout and landslides cut off key roads Officals have warned of aftershocks but say there is no danger of a tsunami.

The quake, the second to rattle Japan in the last four weeks, shook buildings 300 miles away in Tokyo. It happened at a relatively deep 75 miles underground, lessening the impact, officials said.  Military helicopters were sent to the area to check for trapped victims but were hampered by rain and foggy conditions. (More Japan stories.)