TOKYO (KABC) -- A 6.9-magnitude earthquake struck off the coast of Fukushima prefecture in Japan, according to the United States Geological Survey. Japanese media reported that several small tsunamis hit the coast.
NHK, Japan's national public broadcaster, reported that the tsunamis were no more than 4 feet. A tsunami warning was issued for waves of up to 10 feet, but has since been lifted.
Coastal residents were urged to flee to higher ground as a precaution during the tsunami warning. There were no immediate reports of damage or injury.
The preliminary magnitude of the earthquake was 7.3, but was later downgraded. The earthquake could reportedly be felt in Tokyo, which was 150 miles from the epicenter.
The USGS said the quake struck around 6 a.m at a depth of 7 miles.
Tsunami warning sirens were sounded in Fukushima following the earthquake.
Fukushima prefecture is north of Tokyo and home to the nuclear power plant that was destroyed by a huge tsunami following an offshore earthquake in 2011.
No abnormalities were reported at nuclear plants in the area after Monday's earthquake, according to NHK.
The Associated Press contributed to this report.