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Full Breakdown

Tsunami Advisory Issued Following 6.7 Magnitude Earthquake in Northeast Japan

12/12/2025, 5:55:13 AM

Overview of the Earthquake Event

On December 12, 2025, a 6.7 magnitude earthquake struck off the coast of Aomori Prefecture in northeastern Japan at 11:44 a.m. local time (02:44 GMT). The Japan Meteorological Agency (JMA) reported the quake occurred at a depth of 20 kilometers (12.4 miles), prompting a tsunami advisory for potential waves up to 1 meter (3.2 feet) high. This seismic event followed a more powerful 7.5 magnitude earthquake that hit the same region on December 8, which caused injuries and damage.

Context of Recent Seismic Activity

The recent earthquakes have raised concerns among residents, particularly given the region's history with seismic events. The JMA had previously issued a special advisory warning residents from Hokkaido to Chiba to be alert for the possibility of further significant earthquakes within a week following the December 8 tremor, which injured at least 34 people and caused minor damage. The advisory reflects heightened anxiety in a region still recovering from the devastating 2011 earthquake and tsunami that resulted in approximately 18,500 deaths.

Official Statements & Responses

Japan's Nuclear Regulation Authority confirmed that there were no immediate abnormalities reported at nuclear facilities in the region following the latest earthquake. The JMA has urged residents in 182 municipalities to prepare for potential aftershocks and to remain vigilant. The agency emphasized that the advisory does not predict a major earthquake but indicates an increased risk.

Criticism & Opposition

Despite the precautions, some residents expressed frustration over the lack of clear communication regarding emergency preparedness. Following the December 8 quake, many began stocking up on disaster supplies, with reports of increased sales of bottled water and emergency kits in local stores. A customer in Hakodate noted, “We decided to prepare, so I bought disaster kits for everyone,” highlighting a community response to ongoing fears.

Conflicting Reports & Gaps

While the JMA reported potential tsunami waves of up to 1 meter, other sources indicated that the actual observed waves were less significant, measuring between 20 to 70 centimeters in various locations. Additionally, the extent of damage and injuries from the December 12 quake remains unclear, with no immediate reports of significant impacts on infrastructure.

Verbatim Quotes

  • “We decided to prepare, so I bought disaster kits for everyone,” — Male customer, Hakodate
  • “There is a possibility that further powerful and stronger earthquakes could occur over the next several days,” — JMA Official

What's Next

Authorities continue to monitor the situation closely, with residents advised to stay alert for updates and to review their emergency plans. The JMA has indicated that the risk of aftershocks remains, and the public is encouraged to remain prepared for potential future seismic activity.