Japan lifted tsunami warnings in a dramatic night of tremors and tension early Tuesday after an earthquake struck off the coast of northeastern Japan, injuring about 30 people and forcing around 90,000 residents into evacuation. Japan lifted tsunami warnings after a 7.5 quake, a full-scale alert that sent coastal communities into a race for safety, but ultimately spared them from a major tsunami disaster.
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Massive Earthquake Rocks Northeastern Japan
At around 11:15 p.m. on Monday, an earthquake with a magnitude of 7.5 hit the Pacific Ocean area off the coast of Aomori Prefecture. The quake’s depth was about 50–54 km. The tremor was also registered as “upper-6” on the Japanese seismic intensity scale in certain parts of Aomori, which is extremely strong.
The quake caused the injury of at least 30 people in the area, with most of the injuries resulting from being hit by falling objects, things falling off the shelves, and shaking of the structures. The bulk of the region’s damage was at a very low level – a few broken windows and wall cracks were reported.
Quick Overview
| Item | Details |
|---|---|
| Magnitude | 7.5 (initially 7.6) |
| Epicentre | ~80 km offshore of Aomori Prefecture (depth of 50-54 km). |
| Seismic Intensity | Upper-6 in some parts of Aomori Prefecture. |
| Evacuated | Approximately 90,000 individuals were evacuated from the Hokkaido, Aomori, and Iwate prefectures. |
| Injured | 30 people |
| Tsunami Initial Reports | Waves between 20 and 70 cm were reported at coastal ports |
| Tsunami Warnings | Issued and subsequently downgraded to advisory and then lifted by early Tuesday morning. |
| Major Damage/Fatalities | No major damage has been reported. |
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Evacuations and Tsunami Alerts for Coastal Areas
In an effort to forewarn residents, the Japan Meteorological Agency (JMA) issued tsunami warnings for the time immediately following the earthquake to cover the coastal areas in Hokkaido, Aomori, and Iwate Prefecture. Waves were expected to be as high as 3 metres. Around 90,000 residents were urged to evacuate to higher ground or to a safe shelter.
After the hours had passed since the quake and the checks of the sea were underway, it turned out that the real tsunami waves were far less than anticipated. The JMA decided to weaken the tsunami warnings to advisories and then remove them altogether by early Tuesday morning.
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Aftermath: Damage, Disruptions, and Cautious Vigilance
Although the quake caused limited damage to structures, the impact of the earthquake on infrastructure and people’s lives was still considerable. Japan lifted tsunami warnings after a 7.5 quake, yet several hundred homes were without electricity; however, the supply was gradually restored by early morning.
The emergency teams, which included the government’s crisis management office, and the authorities were on the move during the night. The government made it clear that even though major damage has been avoided this time, the danger of aftershocks is still very much there. Residents were advised to be constantly vigilant and to comply with the JMA’s directions.
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