Japan lifts megaquake advisory after no abnormalities detected

Japan lifted its first-ever "megaquake" advisory on August 15, following a week of no abnormal seismic activity in the Nankai Trough region. The advisory was issued after a magnitude-7.1 quake on August 8 raised concerns about a potential megaquake, with a 70% to 80% chance of occurrence in the next 30 years. The government estimates a worst-case scenario could result in 323,000 fatalities and $1.50 trillion in damages.