Japan has issued a warning due to an elevated risk of a potential mega-earthquake along the northern coastal regions. This increased risk is linked to a significant earthquake that occurred earlier in the day. Both the Cabinet Office and the Japan Meteorological Agency (JMA) have highlighted a one percent chance of a mega-quake hitting the northern Japanese coast within the next week, following the powerful quake near the Chishima trough.
Authorities emphasize that this advisory is not a precise prediction but recommend that residents enhance their preparedness by ensuring they have emergency supplies like food and a “go bag” while maintaining their daily routines. This is the second advisory issued for the region in recent times, with the previous one following a major quake in December that did not result in any subsequent major quakes.
The earlier magnitude 7.7 earthquake that struck off the northeastern coast of Japan prompted authorities to issue tsunami warnings, cautioning residents to avoid coastal areas where waves as high as three meters were expected. Despite initial tsunami waves reaching up to 80 centimeters, the threat was later downgraded, and the Pacific Tsunami Warning Centre confirmed that the hazard had passed.
No immediate casualties or significant damage were reported following the earthquake, as confirmed by Japan’s top government spokesperson, Minoru Kihara. Evacuation orders were issued in several port towns, including Otsuchi and Kamaishi, which had previously been devastated by the 2011 earthquake and tsunami. Prime Minister Sanae Takaichi urged citizens in the impacted areas to evacuate to safety and announced the establishment of an emergency task force.
Anticipating big aftershocks in the coming days and weeks, an official from JMA warned of potential further seismic activity. Ships in Hachinohe port in Hokkaido set sail in preparation for possible waves, as shown on NHK footage, with alerts flashing “Tsunami! Evacuate!” A three-meter tsunami could cause significant damage to low-lying areas and structures, posing risks to individuals exposed to its currents.
Additionally, bullet train services in Aomori were temporarily halted due to the tremors, as reported by the Kyodo news agency. The earthquake, categorized as an “upper 5” on Japan’s seismic intensity scale, had an epicenter in the Pacific Ocean and a depth of 10 kilometers, according to JMA. The International Atomic Energy Agency noted no abnormalities at Japan’s nuclear facilities post-earthquake.
Japan, situated in the seismically active “Ring of Fire,” experiences frequent earthquakes, with approximately 20% of the world’s quakes exceeding a magnitude of 6.0. Notably, a 7.5 magnitude quake in December left numerous individuals injured. Reflecting on past disasters, such as the devastating 2011 earthquake and tsunami that claimed over 22,000 lives, Japan remains vigilant in earthquake preparedness, given its high seismic activity.