A 7.7 magnitude earthquake struck off northern Japan on April 20, 2026, causing significant concern across the region. The quake triggered a short-lived tsunami alert, with waves detected at local ports.
A tsunami of about 80 centimeters was recorded at Kuji port, while a smaller wave of 40 centimeters was noted at another port in Iwate prefecture. Two people sustained injuries after falling during the quake.
The earthquake occurred at approximately 4:53 p.m. Japan time and was measured at a depth of about 19 kilometers. The U.S. Geological Survey reported the quake’s magnitude as 7.4.
Shinkansen bullet trains connecting Tokyo and northern Japan were temporarily suspended following the earthquake. This disruption affected many commuters and travelers in the area.
The Nuclear Regulation Authority confirmed no abnormalities at nearby nuclear power plants, alleviating fears of a secondary disaster. Still, authorities urged caution as aftershocks were expected.
Japan’s Meteorological Agency warned that tsunami waves could hit repeatedly. Residents were advised to remain on safe ground until the warning was officially lifted.
Prime Minister Sanae Takaichi stated, “The government will do our utmost in case of an emergency.” This statement reflects the government’s commitment to public safety during such crises.
This earthquake serves as a stark reminder of the devastating March 2011 disaster that resulted in over 22,000 deaths across the region.
There is a 1% chance for a megaquake in the week following this event, raising concerns among seismologists and residents alike. Details remain unconfirmed regarding potential aftershocks or further seismic activity.
