Tokyo Japan earthquake today brought a magnitude 5.9 quake to Tokyo and the broader Kanto region on Sunday, with at least 37 people injured and mobile early warning alarms sounding before the shaking. The quake was centered in southern Ibaraki Prefecture at a depth of 68 kilometers.
Tokyo’s Adachi Ward recorded lower 5 on the seven-point shindo seismic scale, while parts of Ibaraki, Saitama and Chiba prefectures also recorded lower 5. Level 4 shaking reached other areas of Tokyo and Tochigi, Gunma and Kanagawa prefectures, and in some places the shaking lasted up to a minute.
Sanae Takaichi and the damage check
Within an hour of the quake, Prime Minister Sanae Takaichi said efforts to confirm the extent of the damage were ongoing and that a liaison office had been established at the Prime Minister’s Office Crisis Management Center. Sanae Takaichi also said she had issued instructions for officials to provide timely and accurate information to the public.
Her message went to residents in Tokyo and across Kanto at the point when the quake had already produced injuries, elevator traps and structural damage. The Fire and Disaster Management Agency said 22 people were lightly hurt in Saitama, Chiba, Kanagawa and Ibaraki prefectures, while 15 people were injured in Tokyo and one person was seriously injured in Kanagawa.
JR East delays across Kanto
JR East reported delays across a number of train lines on Sunday morning, including the Joban Line, Keihin Tohoku Line, Shonan Shinjuku Line, Musashino Line and Chuo-Sobu Line. For commuters, the immediate effect was not just a slow ride but a wider traffic reset across the network while checks continued.
The quake also damaged buildings in at least one municipality, with a partial collapse of the ceiling at Ushiku City Hall in Ushiku, Ibaraki Prefecture. There were also reports of people trapped in elevators in Tokyo, adding to the strain on local response crews.
Shindo levels and the next week
The quake caused injuries and disruption across the region, but authorities were still working to confirm the full extent of the damage. That caution fits the pattern of the shaking itself: Level 2 long-period ground motion was observed in Tokyo’s 23 wards, Saitama and Chiba prefectures, a level that can be felt in taller structures as movement continues after the first jolt.
Sanae Takaichi asked people in areas where the shaking was strong to remain vigilant for another earthquake of similar magnitude, and she posted the warning on X within an hour of the quake. For residents in Tokyo, Ibaraki and the surrounding prefectures, the immediate next step is simple: treat strong shaking as a repeat possibility and keep alerts on while the region’s damage checks continue.
