Japan Issues Earthquake Warning After Strong Tremor

Apr 20, 2026

54 min

Apr 20, 2026 12:32

Japan warns of 'huge' earthquake after powerful tremor

## Advisory for Potential Major Earthquake

Japan has issued a special advisory warning of the possibility of a major earthquake, potentially reaching a magnitude of 8.0 or higher. This alert follows a significant 7.7-magnitude earthquake that struck the northern region of the country, prompting a tsunami warning.

## Details of the Recent Quake

The earthquake occurred at 4:53 pm local time in the Pacific waters off northern Iwate prefecture. Initially recorded at a magnitude of 7.4, it was later revised to 7.5 and then 7.7. The tremor was strong enough to shake buildings in Tokyo, located hundreds of kilometers from the epicenter.

## Government Response and Public Safety

Chief Cabinet Secretary Minoru Kihara reported no immediate serious injuries or significant damage. However, the government is urging residents to take disaster preparedness measures seriously. A Cabinet Office official emphasized the importance of personal responsibility in ensuring safety during such events.

## Tsunami and Aftermath

Following the earthquake, a tsunami warning was issued, but there have been no reports of significant tsunami activity or damage. Authorities continue to monitor the situation closely.

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