A powerful 7.4-magnitude earthquake struck northern Japan on Monday, triggering tsunami warnings across several coastal regions. Authorities have warned that waves of up to 3 metre could hit parts of Iwate Prefecture and Hokkaido, urging residents to move to higher ground immediately.
Evacuation warnings issued
National broadcaster NHK reported that tsunami waves were already approaching coastal areas. Officials cautioned that waves could strike multiple times and stressed the need for immediate evacuation.
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In its advisory, authorities said waves could arrive earlier or later than expected and may be higher than forecast. Residents in affected areas have been asked to stay away from coastlines and river mouths, which may overflow.
Emergency services remain on high alert as teams assess potential damage and monitor the situation closely.
High seismic risk zone
Japan lies along the Pacific "Ring of Fire", one of the most seismically active zones in the world. Positioned at the intersection of four major tectonic plates, the country experiences frequent earthquakes.
With a population of around 125 million, Japan records roughly 1,500 tremors each year, accounting for nearly 18 per cent of global seismic activity. While most of these are minor, stronger quakes can cause widespread disruption depending on their depth and location.
Past disasters shape response
The latest warnings come against the backdrop of past disasters that have shaped Japan's preparedness. In 2011, a magnitude-9.0 earthquake triggered a massive tsunami, leaving around 18,500 people dead or missing and causing a nuclear crisis at Fukushima.
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Authorities have since strengthened early warning systems and evacuation protocols. As the current situation unfolds, officials continue to monitor developments and urge residents to remain in safe locations until all warnings are lifted.
