WELLINGTON?An earthquake with a magnitude of 6.2 struck the Fiji region early on Wednesday, the United States Geological Survey said, but no tsunami warning was issued.

The quake hit at 4:13 a.m. (1613 GMT Tuesday) and was centered 727 kilometers (452 miles) northwest of the Tongan capital Nuku'alofa, at a shallow depth of 10 kilometers.

The region lies in the "Pacific ring of fire", a highly active earthquake and volcanic zone that regularly experiences quakes.