Worldabout 8 hours ago· 1 min read
Japan Lifts Tsunami Warning After 7.7 Magnitude Earthquake Sparks Megaquake Alert
A powerful 7.7 magnitude earthquake struck off Japan's northern coast, prompting tsunami warnings and evacuation orders for over 128,000 residents. Authorities issued a rare advisory warning of slightly increased megaquake risk.
Powerful Earthquake Strikes Japan
A magnitude 7.7 earthquake struck off Japan's northeastern coast at 4:53 p.m. local time, triggering tsunami warnings and emergency evacuations across multiple prefectures.
Tsunami Response and Evacuations
- Over 128,000 residents received evacuation advisories in Iwate and three other northern prefectures
- Tsunami waves up to 80 centimeters (2.6 feet) were detected at Kuji port
- Warnings were later downgraded to advisories as the immediate threat passed
Rare Megaquake Advisory Issued
The Japan Meteorological Agency issued a rare advisory warning of slightly increased megaquake risk:
- Risk elevated from typical 0.1% to 1% over the next week near the Chishima Trough
- Warning covers more than 180 towns and cities from Chiba to Hokkaido
Transportation and Infrastructure Impact
- Bullet train services suspended due to power outages
- Local trains in Iwate prefecture halted operations
- Nuclear facilities reported no abnormalities detected
Historical Context
Japan remains one of the world's most earthquake-prone countries, accounting for about 20% of global magnitude-6+ earthquakes. The event evokes memories of the devastating 2011 magnitude 9.0 earthquake and tsunami that killed over 18,000 people.