6.1-Magnitude Quake Jolts Northeastern Japan; No Tsunami Warning Issued

An earthquake with a preliminary magnitude of 6.1 jolted northeastern Japan early on June 28, prompting no tsunami warning, according to the Japan Meteorological Agency.

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An earthquake with a preliminary magnitude of 6.1 shook north-eastern Japan early on June 28, with no tsunami warning issued, the weather agency said.

The seismic event occurred at 5:21 a.m. local time, with its epicenter located in the Pacific Ocean off the coast of Iwate prefecture at a depth of about 40 kilometers. The quake registered a lower 5 on the Japanese seismic intensity scale of 7 in parts of Aomori and Iwate prefectures.

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The focus of the 5.21am (4.21am Singapore time) quake was in the Pacific off Iwate prefecture at a depth of about 40km, according to the Japan Meteorological Agency.

Authorities reported that no abnormalities were detected at the Higashidori nuclear power plant in Aomori or the Onagawa nuclear power complex in Miyagi Prefecture. Japan Nuclear Fuel Ltd. also confirmed that a nuclear fuel reprocessing plant in Rokkasho, Aomori Prefecture, experienced no issues.

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No abnormalities were reported at the Higashidori nuclear power plant in Aomori or at the Onagawa nuclear power complex in Miyagi Prefecture, according to Tohoku Electric Power Co.

This earthquake follows a more powerful 7.2-magnitude tremor that struck the same region just days prior, on June 25. That earlier quake injured at least 10 people, disrupted bullet train services, and led to temporary school closures. It occurred off Iwate at a depth of 44 kilometers and registered an upper 6 on the seismic intensity scale in Hashikami, Aomori Prefecture.

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There were also no abnormalities at a nuclear fuel reprocessing plant in Rokkasho, a Pacific coastal village in Aomori Prefecture, Japan Nuclear Fuel Ltd. said.