Japan Issues First-Ever Megaquake Alert Following M7.1 Earthquake

The alert raises concerns about a potential larger quake in the Nankai Trough region, urging preparedness and caution.

A magnitude 7.1 earthquake struck Miyazaki prefecture, causing injuries and minor tsunamis.
The Japan Meteorological Agency's alert warns of increased risk for a magnitude 8 or greater quake.
Experts estimate a 70-80% chance of a megaquake in the Nankai Trough within the next 30 years.
Residents are advised to stay prepared for possible aftershocks and follow government safety measures.
Historical data shows a small but significant chance of larger quakes following an initial tremor.