CNN Wire Staff
Tokyo (CNN) - A magnitude-6.4 earthquake struck Japan Tuesday morning, after a similar quake rattled the northeastern part of the country Monday evening.
The quake struck at about 8:08 a.m. Tuesday (7:08 p.m. Monday ET), according to the U.S. Geological Survey. It had a depth of about 13 kilometers (8 miles) and was centered about 77 miles east-southeast of Tokyo.
Earlier, a powerful 6.6-magnitude earthquake struck Monday night, on the one-month anniversary of the country's devastating 9.0-magnitude quake and tsunami.
The new earthquake triggered landslides that trapped several people in the city of Iwaki.
The quake was centered about 100 miles (164 kilometers) northeast of Tokyo and about 30 miles (50 kilometers) southwest of the crippled Fukushima Daiichi nuclear plant, according to the U.S. Geological Survey.
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