A powerful earthquake registering a preliminary magnitude of 7.5 struck off the coast of Sanriku in northern Japan during the late afternoon local time. The quake occurred at a depth of approximately 10 kilometers.
Tsunami Alert Triggered by 7.5 Magnitude Earthquake
Following the earthquake, a tsunami measuring 80 centimeters was detected at Kuji port in Iwate Prefecture within an hour. Another port in the region reported a tsunami of 40 centimeters.
Warnings and Evacuations
Despite the tsunami alert remaining active, with forecasts predicting waves could reach up to three meters, the Pacific Tsunami Warning Center declared that the immediate threat had passed. The Japan Meteorological Agency advised residents in the affected areas to move away from coastlines and riverbanks and seek higher ground.
- Evacuation advisories were issued for over 128,000 residents across Iwate and three other northern prefectures.
- Authorities urged heightened caution against potential aftershocks over the coming week.
Response and Safety Assessments
Images broadcasted by NHK showed numerous residents evacuating to parks and higher ground for safety. The Fire and Disaster Management Agency reported that while officials were assessing the situation, no immediate injuries or damage had been reported, including at power plants.
The Nuclear Regulation Authority confirmed that all nuclear facilities in the region remained intact, with no anomalies detected.
Historical Context
This recent earthquake follows a history of seismic activity in the area. A similar magnitude 7.5 earthquake in December resulted in dozens of injuries. Additionally, the devastating earthquake and tsunami on March 11, 2011, with a magnitude of 9.0, caused over 22,000 fatalities and forced nearly half a million people to evacuate their homes due to widespread damage.
