A powerful earthquake with a preliminary magnitude of 6.6 hit Tokyo and nearby areas shortly after dawn Tuesday, halting trains and forcing two nuclear reactors to be shut down for safety checks.
The US Geological Survey said another, unrelated quake with a 7.6 magnitude hit the Indian Ocean about 257 kilometers north of Port Blair in India's Andaman Islands. A tsunami watch was called for India, Myanmar, Indonesia, Thailand and Bangladesh. The caution was later lifted without any tsunami being recorded.
The Andaman Islands quake was reported to be 33.15 kilometers deep, the US Geological Survey said. On Dec. 26, 2004, about 230,000 people were killed in a dozen countries around the Indian Ocean when a magnitude 9.0 earthquake triggered a tsunami.