Tokyo, Japan earthquake today began before 2 a.m. on Sunday, when a magnitude 5.9 quake struck Tokyo and the broader Kanto region. At least 37 people were injured, trains were delayed across several JR East lines, and Sanae Takaichi said damage checks were underway.
In Tokyo, 15 people were hurt, while 22 more were injured in Saitama, Chiba, Kanagawa and Ibaraki prefectures. One person was seriously injured in Kanagawa, and the quake caused a partial collapse of the ceiling at Ushiku City Hall in Ushiku, Ibaraki Prefecture.
Sanae Takaichi Response
Within an hour of the quake, Sanae Takaichi posted on X that efforts to confirm the extent of the damage were ongoing, a liaison office had been established at the Prime Minister's Office Crisis Management Center, and officials had been told to provide timely and accurate information. She also said, “To those in the areas where the shaking was strong, I ask that you continue to remain vigilant for the possibility of another earthquake of similar magnitude,” and a related update was posted at Tokyo Japan earthquake today after 37 injuries.
That response matters for residents and passengers because the first hours after a quake determine whether transport disruption stays limited or spreads across more lines and districts. JR East reported delays across the Joban Line, Keihin Tohoku Line, Shonan Shinjuku Line, Musashino Line and Chuo-Sobu Line on Sunday morning, leaving commuters to wait for service updates before trying to move across Tokyo and nearby prefectures.
Shindo in Tokyo and Ibaraki
The quake was centered in southern Ibaraki Prefecture and struck at a depth of 68 kilometers, which helps explain why the strongest shaking was not uniform across the region. It reached lower 5 on Japan’s seven-point shindo scale in Adachi Ward and parts of Ibaraki, Saitama and Chiba, while Level 4 shaking was recorded in other areas of Tokyo and in Tochigi, Gunma and Kanagawa.
Level 2 long-period ground motion was also observed in Tokyo's 23 wards and in Saitama and Chiba prefectures. For people in higher floors, that kind of motion can mean a longer sway than the initial jolt, and it adds another layer to what residents and building managers have to check after the first damage inspection.
Tokyo and the Kanto region
The quake lasted up to a minute in some areas, and early warning alarms sounded on mobile phones shortly before the shaking. People in Tokyo and in Saitama faced the combined effect of the shaking, elevator reports, and delayed trains before morning routines could resume.
Officials said they would keep checking the extent of the damage and warned people in areas with strong shaking to stay vigilant over the next week. For now, the practical question for residents in Tokyo, Ibaraki, Saitama, Chiba and Kanagawa is how quickly inspections, transport restoration and injury counts move beyond the first reports.
