A powerful earthquake struck off the southern coast of Japan on Thursday ( 08 August), causing mostly minor injuries and prompting concerns about future major quakes. The magnitude 7.1 quake was centered in the waters off the eastern coast of Kyushu at a depth of about 30 kilometers (approximately 19 miles) below the sea surface.
The earthquake caused the strongest shaking in Nichinan city and nearby areas in Miyazaki prefecture on Kyushu island. Nine people were injured in Kyushu, though their injuries were mostly minor. There were no reports of serious damage. Tsunami waves up to 50 centimeters (1.6 feet) were detected along parts of Kyushu’s southern coast and the nearby island of Shikoku about 30 minutes after the quake. Tsunami advisories were issued but lifted for most areas three hours later, with all advisories lifted five and a half hours after the quake.
In response to the quake, Japanese seismologists held an emergency meeting to reassess the risk of major earthquakes associated with the Nankai Trough, an undersea trough east of southern Japan. The level of concern was raised following this reassessment, highlighting the ongoing seismic risks in the region.
The Japan Meteorological Agency continues to monitor the situation, emphasizing the importance of preparedness in the event of future seismic activity. Residents in affected areas are advised to remain vigilant and follow updates from local authorities.
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