The preliminary magnitude 7.8 quake struck at 5:49 a.m. Hawaii time 25.9 miles south-southeast of Levuka, Fiji at a depth of 415 miles, according to the U.S. Geological Survey. READ MORE: Japan earthquake kills at least 9, rescuers rush to unearth survivors

The Pacific Tsunami Warning Center said no destructive Pacific-wide tsunami was expected, and there was no tsunami threat to Hawaii. The earthquake, which struck at 3:49 a.m. local time, was centered about 41 kilometers southeast of Levuka on Fiji's Ovalau island and at a depth of 669 kilometers.
A magnitude 7.8 earthquake occurs off the coast of Fiji. The Pacific Tsunami Warning Center says no tsunami is expected due to its depth.