Japan Issues Post-Earthquake Warning for Hokkaido-Sanriku Offshore Region

Following a major earthquake off Sanriku on the evening of the 20th, the Japan Meteorological Agency issued a 'Hokkaido-Sanriku Offshore Post-Earthquake Attention Information.' The warning indicates an increased possibility of a massive earthquake along the Chishima and Japan Trenches, urging 182 municipalities from Hokkaido to Chiba Prefecture to review their preparedness.