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Strong 6.5-magnitude earthquake strikes off Japan’s Sanriku coast, no immediate damage reported

A powerful 6.5 magnitude earthquake rattled northern Japan's Sanriku coast, occurring at a shallow depth of just 9.5-10 km.

Updated on: Mar 26, 2026, 21:00:08 IST
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A strong earthquake of magnitude 6.5 struck off the coast of Sanriku in northern Japan, around 122 km east of Yamada on Thursday. The quake occurred at a depth of about 9.5 to 10 km, according to data from the United States Geological Survey (USGS) and the Japan Meteorological Agency (JMA), indicating a relatively shallow tremor that could be felt across parts of north-eastern Japan.

The quake, felt widely, raised concerns about potential aftershocks and safety measures in the region. (REUTERS)
The quake, felt widely, raised concerns about potential aftershocks and safety measures in the region. (REUTERS)

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The German Research Centre for Geosciences (GFZ) reported a slightly lower magnitude of 6.2, stating that the earthquake struck off the east coast of Honshu at a depth of 10 km, as per a Reuters report. Meanwhile, the JMA said the tremor occurred at 23:18 local time and registered a maximum seismic intensity of four on Japan’s scale, suggesting moderate shaking in affected areas but limited likelihood of major damage.

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Other agencies also provided varying assessments of the quake. India’s National Center for Seismology (NCS) recorded the event as a magnitude 6.3 earthquake at 7:48 PM IST, placing its epicentre in the North Pacific Ocean at a depth of 60 km, approximately 517 km northeast of Tokyo.

Despite the differences in magnitude and depth estimates, all agencies confirmed the quake originated offshore, reducing the immediate risk to densely populated areas.

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There were no immediate reports of casualties or significant damage following the earthquake, and no tsunami warning had been issued at the time of reporting. Authorities in Japan are closely monitoring the situation for aftershocks.

Japan is highly prone to earthquakes, with frequent tremors recorded across the country due to its position along major tectonic fault lines. Earlier this year, a quake measuring around 5.8 struck Shimane prefecture, registering strong shaking on Japan’s seismic intensity scale but causing no tsunami warning. Such events are common, with the country experiencing nearly 1,500 tremors annually, most of them minor but occasionally strong enough to disrupt daily life.

  • Yamini C S
    ABOUT THE AUTHOR
    Yamini C S

    Yamini CS is a Senior Content Producer at Hindustan Times with nearly six years of experience in digital journalism. She is part of the India News desk, where she works on a wide range of stories cutting across civic issues, city-based developments, politics, governance, public policy, breaking news, trending topics, and international affairs that have an impact on India. Her role involves tracking fast-moving developments, verifying information from official and on-ground sources, and presenting news in a clear, accessible format for a digital-first audience. A significant part of her work includes handling live blogs during major news events, such as elections, court verdicts, political developments, civic disruptions, protests, weather-related alerts, and unfolding national or international incidents. Through live coverage, she focuses on timely updates to help readers follow complex stories as they evolve. Before moving to the broader India News desk, Yamini was associated with the Bengaluru desk at Hindustan Times, where she extensively covered urban governance, infrastructure, traffic and transport issues, weather events, public grievances, and civic administration in the city. This experience strengthened her grounding in city reporting and sharpened her focus on citizen-centric journalism. She began her career as a correspondent with Reuters after completing a postgraduate diploma in journalism from the Indian Institute of Journalism and New Media. Her early training instilled a strong emphasis on accuracy, sourcing, and news ethics, which continue to shape her reporting style. Outside of work, Yamini enjoys reading across genres, listening to music, and spending time with her family, which help her maintain balance in a fast-paced newsroom environment.Read More

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