Japan Earthquake: Tsunami Warning Activated for Iwate Prefecture After 6.8 Quake

Japan issued a tsunami advisory for Iwate Prefecture on Sunday evening after a powerful offshore earthquake struck the northern Pacific region.

The United States Geological Survey (USGS) recorded the quake at magnitude 6.8, while India's National Center for Seismology (NCS) placed it at 6.6, occurring at a depth of about 30 km beneath the ocean surface. The tremor hit around 5:03 pm local time near coordinates 39.51° N latitude and 143.38° E longitude.

Tsunami Waves Feared Along Northern Coast

The Japan Meteorological Agency (JMA) swiftly issued a tsunami advisory for the Iwate coastline, warning of possible waves up to one metre high. "A tsunami advisory has been issued," AFP quoted the agency as saying, cautioning residents that waves could reach the shore without much warning. Public broadcaster NHK reported that tsunami waves had been observed offshore and urged people to stay away from beaches and coastal areas. Live television visuals, however, showed calm waters in several areas.

Memories of 2011 Disaster Still Fresh

The earthquake reignited memories of Japan's 2011 tragedy, when a 9.0-magnitude undersea quake triggered a devastating tsunami that killed or left missing around 18,500 people. That catastrophe also caused three nuclear reactors at the Fukushima plant to melt down, resulting in one of the world's worst nuclear disasters since Chernobyl.

Japan's Constant Seismic Vigilance

Japan is located at the junction of four major tectonic plates on the Pacific "Ring of Fire", making it one of the most earthquake-prone countries on Earth. The nation experiences nearly 1,500 tremors every year, most of them mild, though the potential for damage remains high depending on magnitude, depth and location. Authorities continue to stress preparedness and rapid warning systems to protect communities along the vulnerable coastlines.