A powerful earthquake with a magnitude of 6.9 struck off the coast of southwest Japan on Monday evening, prompting a brief tsunami advisory for parts of Kyushu region and Kochi prefecture. Japan Meteorological Agency (JMA) later withdrew the advisory but warned residents to remain vigilant.
Details of Earthquake and Tsunami
earthquake occurred at 9:19 p.m. local time (7:19 a.m. ET), originating near Hyuga-nada Sea, an area known for its seismic activity. Within 30 minutes, a tsunami wave approximately 1 meter (3.2 feet) high made landfall, according to reports from NHK, Japan’s public broadcaster.
Authorities lifted the tsunami advisory late Monday evening, but officials urged residents to stay away from sea and coastal areas. y warned of potential higher waves from secondary and tertiary tsunamis, emphasizing the unpredictability of aftershocks.
Post-Earthquake Warnings and Preparedness
Despite the lifting of the advisory, wear officials cautioned that the region remains at risk of cliff collapses, falling rocks, and further seismic activity. y reiterated the importance of daily preparedness for earthquakes, given Japan’s vulnerability as part of the Pacific Ring of Fire—a region characterized by intense seismic and volcanic activity.
“An earthquake could occur at any time, and it is important to ensure that preparations for earthquakes are implemented daily,” officials stated during a press conference.
Historical Context and Lessons
This earthquake originates from the same region where tremors last summer prompted a megathrust earthquake alert. Hyuga-nada Sea remains a critical area for seismic monitoring due to its historical activity.
Japan’s recent seismic event recalls the catastrophic Tohoku earthquake in 2011, which remains etched in the nation’s memory. A 9.1-magnitude quake off the coast of North Japan triggered a massive tsunami and nuclear disaster, resulting in the loss of over 20,000 lives and extensive destruction.
Precautionary Measures
While Monday’s earthquake did not result in significant damage, it served as a reminder of Japan’s susceptibility to natural disasters. Local authorities and JMA continue to emphasize the importance of community awareness and readiness in mitigating the impacts of future seismic events.
Residents in affected regions have been advised to stay updated on official announcements and avoid hazardous areas near cliffs and coastlines.
