Mass Evacuation: Major Earthquake Off Japanese Coast, Tsunami Observed

Around 4 P.M. eastern standard time, a major 7.3 magnitude earthquake occurred off the coast of Japan, which were followed by 5.4 and 4.8 aftershocks, according to CNN. Mass evacuations have been ordered:

A tsunami wave has already been spotted 22 kilometers off the coast of Iwaki City in Fukushima Prefecture, CNN affiliate NHK reported. Images of the port showed waves that the broadcaster described as "backwash" that happens before a tsunami hits shore.

The Japanese public broadcaster urged the public to evacuate, reminding people to dress warmly and help others flee.

"Please do not think that you are safe. Please evacuate to high grounds," the network said. "Please think about the worst-case scenario and evacuate right away."