ISLAMABAD (PEN) : A 6.0-magnitude earthquake rattled the southeastern coast of Hokkaido, near the town of Hiroo, early Monday morning, the United States Geological Survey (USGS) confirmed. The tremor occurred approximately 64 kilometers south-southeast of Hiroo at a depth of 27 kilometers beneath the Pacific Ocean.
The USGS categorized the quake as minor regarding its potential for damage and casualties, issuing a “green alert” signaling a low risk to life and infrastructure. Japanese authorities confirmed no tsunami warnings were necessary, and no significant changes in sea level were detected.
This event closely followed a 6.1-magnitude earthquake near the city of Kushiro on Sunday night, which also caused no injuries or damage but unsettled local residents. Experts suggest the Kushiro quake may have acted as a foreshock to Monday’s seismic activity off Hiroo.
Tremors Felt by Millions, Authorities Urge Caution
The shaking was reported as weak to light, felt by nearly two million people across the surrounding regions. The Japan Meteorological Agency (JMA) has advised residents to stay vigilant for possible aftershocks.
A resident of Hiroo shared on X (formerly Twitter), “The shaking felt stronger than expected and lasted longer. We’re worried about more aftershocks. All we can do is hope the pressure releases gradually.”
Japan’s location on the Pacific “Ring of Fire” makes it prone to frequent seismic events. Most buildings in Hokkaido are constructed to withstand earthquakes, though the USGS noted some older, vulnerable structures remain in certain areas, particularly those made from adobe or unreinforced brick and mud.
Officials continue to encourage the public to review emergency preparedness plans. Despite the tremors, normal daily life has largely resumed in Hiroo and Kushiro.
