Geography of Japan
A woman reacts near flowers near the site where a concrete wall at an elementary school fell onto the street and killed a 9-year-old, in Takatsuki, Osaka, western Japan, Tuesday, June 19, 2018. Shohei Miyano/Kyodo News via AP
French marathon swimmer Benoit "Ben" Lecomte prepares himself in Choshi, Chiba prefecture on June 5, 2018 as he takes the start of his attempt of swimming across the Pacific Ocean. AFP PHOTO / Martin BUREAU
An earthquake with a magnitude of 6.1 has been detected off the coast of Japan.
The US Geological Survey said that the earthquake struck about 286km south east of Kamaishi, and around 321km east of Fukushima.
The depth of the earthquake, which struck at 2.37am local time, was measured at 10km. Details of any damage are yet to emerge.
At least two people have been killed and 18 others are missing in huge floods that are surging through southern Japan, with authorities warning hundreds of thousands of people to flee.
Unprecedented torrential rain has caused rivers to burst their banks, sweeping away roads and houses, and destroying schools.