A strong earthquake struck western Japan on Tuesday morning, with a preliminary magnitude of 6.2. The quake’s epicentre was located in eastern Shimane Prefecture at a depth of around 10 kilometres, sending strong tremors across the Chugoku region.
Seismic intensity reached upper 5 in areas including Matsue, Yasugi, Sakaiminato, Hino and Kofu, making movement difficult for residents and triggering emergency alerts on televisions and mobile phones. Authorities recorded twelve aftershocks, the largest measuring magnitude 5.1 and registering a weak 5 intensity.
Shinkansen services between Shin-Osaka and Hakata were temporarily suspended for safety checks but resumed by early afternoon. Officials confirmed there was no tsunami risk and no impact on nuclear facilities.
Quake Details And Intensity
A powerful earthquake struck eastern Shimane Prefecture on Tuesday morning, jolting cities across western Japan. The tremor hit at 10:18 a.m. and was measured at a preliminary magnitude of 6.2, according to the Japan Meteorological Agency.
In Matsue, Yasugi, Sakaiminato, Hino and Kofu, the shaking was intense enough to knock over unsecured furniture and make it hard for people to move without holding onto something. Long-period shaking was also felt across both prefectures. Over the next few hours, twelve aftershocks followed, including a magnitude-5.1 tremor recorded shortly before 1 p.m.
Officials later reassured the public that there was no danger of a tsunami. Power utilities said operations at the Shimane nuclear plant remained normal, and regulators confirmed that no irregularities had been detected.
Immediate Response And Impacts
High-speed rail services in western Japan were briefly disrupted on Tuesday after the earthquake knocked out power along the Sanyo Shinkansen line. Trains between Hiroshima and Okayama were suspended before resuming service around midday.
As the extent of the damage became clearer, Japan’s Maritime Self-Defence Force was sent to survey affected areas. Prime Minister Sanae Takaichi said the government was assessing the impact and warned residents to stay prepared for further aftershocks.
At a morning briefing, Chief Cabinet Secretary Minoru Kihara said nuclear facilities had not been affected. NHK later reported that four people had been taken to the hospital and that several buildings suffered damage.
Television viewers saw dramatic images as the quake hit: power lines swinging, buildings shaking, and news anchors pulling on hard hats mid-broadcast as early-warning alerts cut into live programming.
Regional Context And Preparedness
Japan’s frequent earthquakes are a fact of life, a consequence of its position along the Pacific Ring of Fire. The latest tremor was felt across wide areas of Shimane and Tottori prefectures, but officials said there were no immediate reports of serious injuries or major damage.
The Japan Meteorological Agency warned that the danger is not over, cautioning that aftershocks of similar strength could still follow. Japan measures earthquakes using the Shindo scale, which focuses on how strongly the ground shakes in each location. An “upper 5” rating is strong enough to damage older buildings, even if newer structures hold firm.
Attention has also focused on critical infrastructure. Chugoku Electric Power said its Shimane nuclear plant, restarted only last December after years offline following Fukushima, remained unaffected. Authorities continue to urge residents to stay cautious and ready as monitoring continues.
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