6.4 magnitude quake strikes off Japan coast: USGS April 19, 2020 at 05:12PM

A 6.4-magnitude earthquake struck off the east coast of Japan early on Monday, according to the US Geological Survey, but no tsunami warning was issued.The epicentre of the earthquake was 41.7 kilometres beneath the Pacific seabed, less than 50 kilometres off the coast of Miyagi prefecture, the USGS said on its website, rating the risk of casualties and damage as low.