M5.9 quake strikes eastern Japan including Tokyo, disrupting trains

Key Points:

• A 2:00 a.m. earthquake with a magnitude registering lower 5 on Japan's seismic intensity scale struck southern Ibaraki Prefecture at a depth of 68 kilometers, causing shaking felt in parts of Ibaraki, central Tokyo, Saitama, and Chiba prefectures without triggering a tsunami.
• Over 20 people were injured in the quake, with injuries reported in Saitama, Kanagawa, and Chiba prefectures, and infrastructure damage included a ruptured water pipe in Tokyo's Koto Ward under investigation for quake-related causes.
• Train services experienced delays and some express lines remained halted, although the Keisei Line resumed normal operations by 9:40 a.m., reflecting ongoing transportation disruptions in the affected areas.
• No abnormalities were detected at nuclear power plants in Ibaraki or Fukushima Prefectures, and Prime Minister Sanae Takaichi instructed officials to assess damage and keep the public informed.
• The Japan Meteorological Agency issued an emergency earthquake alert at the time of the quake and warned the public to remain vigilant for possible aftershocks of similar intensity over the next week, especially in the coming two to three days.