© earthquake.usgs.gov
The epicenter of the quake in southern Japan was located at a shallow depth of 10 kilometers, near the area where a 6.5 earthquake struck on Thursday.
According to the US Geological Survey, the quake had a magnitude of 7.0 and its epicenter was located just 1 km southwest of the city of Kumamoto.
An aftershock of 5.8 magnitude has also been reported in the area.
"Tsunami warnings or advisories are currently in effect," Japan Meteorological Agency said.
The tsunami advisory has been issued for the Ariake and Yatsushiro Seas.
The advisory warns of a possible wave of one meter in height, Japan's NHK broadcaster said.
The latest footage from Kumamoto in Japan, where a 7.4-magnitude earthquake has hit https://t.co/0ZqutBrWwW https://t.co/HxsmZ5ZvLe
— Sky News (@SkyNews) April 15, 2016
#tsunami advisory on the coastal area of Ariake Sea and Yatsushiro Sea on the western coast of #Kumamoto. Magnitude 7.1 #earthquake #jishin
— Aiko Doden (@nhk_asianvoices) April 15, 2016
So many earthquakes in the last week and all over 6. The world will be ripped apart..