The United States Geological Survey reported a 6.9-magnitude earthquake off the coast of Japan's Fukushima Prefecture early Tuesday morning.
Parts of Japan's East Coast are under a tsunami warning, as residents are being urged to seek higher ground. Local authorities said a tsunami of up to 3 meters is possible. Japan's NHK TV reported that a tsunami was observed roughly one hour after the quake.
As of now, the National Weather Service's Tsunami Warning Center said there is no threat of a tsunami striking the United States coast.
The quake struck at 4 p.m. ET Monday, or 6 a.m. Tuesday local time.
The earthquake was centered 20 miles east of Namie, Japan. Namie is a city of roughly 20,000.
Tuesday's earthquake was several hundred miles south of the 9.1-magnitude earthquake that struck Japan on March 11, 2011. That earthquake killed at least 15,000.
Note: Authorities originally listed the earthquake's strength at 7.3-magnitude. The USGS has since revised its report.
