Here’s What to Know About Japan’s Mega Quake Advisory

Following a magnitude 7.6 earthquake near Aomori Prefecture in northern Japan on Monday, December 11, 2025, the Japanese government issued a rare advisory. The advisory indicates an increased, though still small, chance of a magnitude 8 or greater earthquake occurring in the next week. While scientists cannot predict earthquakes, historical data suggests a 1% chance, which is significantly higher than normal for the region. The government issued a similar advisory in 2024 that expired without incident. Officials are taking the increased risk seriously, referencing past events like the 2011 earthquake and tsunami, where a smaller quake preceded a devastating one. The advisory covers an area off the northern coast of Japan.

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