Japan issues megaquake advisory after recent powerful earthquake

Japan issued its first "megaquake advisory" following a magnitude 7.1 earthquake off Kyushu on August 8, raising concerns about a potential stronger quake. The Japan Meteorological Agency estimates a 70-80% chance of a magnitude 8 or 9 quake in the next 30 years. The advisory has led to public confusion, cancellations of events, and increased demand for emergency supplies across the country.