A strong earthquake measuring a preliminary magnitude of 6.1 struck the East China Sea near Japan’s Okinawa region on Friday afternoon, according to early seismic reports. The earthquake occurred at around 1:04 p.m. local time (GMT+9), with its epicentre located about 101 kilometres from Kumejima in Okinawa Prefecture.
The German Research Centre for Geosciences (GFZ) initially reported the earthquake as a magnitude 6.0 event before later estimates placed it at magnitude 6.1. Seismologists said the earthquake occurred at a shallow depth of approximately 10 kilometres beneath the Earth’s surface, although the exact depth and magnitude may be revised as more data becomes available.
Because the earthquake originated at a shallow depth, shaking would generally be felt more strongly than from deeper earthquakes. However, preliminary assessments indicate that the quake was not expected to cause significant damage.
Residents near the epicentre were likely to experience light to moderate shaking. In Kumejima, located about 99 kilometres from the epicentre and home to around 7,200 people, the tremor was expected to be felt lightly. Similar shaking was also expected in Miyakojima, around 140 kilometres away, where nearly 55,000 people live.
Initial reports suggest the earthquake was unlikely to result in major structural damage. Minor impacts such as objects falling from shelves or small cracks in windows may have occurred in some areas, but there were no immediate reports of casualties or widespread destruction.
Authorities are continuing to monitor the situation as seismologists analyse additional data to confirm the earthquake’s final magnitude, depth, and exact location. Japan’s earthquake monitoring agencies are also assessing whether any aftershocks could follow the event.
Japan is one of the world’s most earthquake prone countries due to its location along the Pacific Ring of Fire, where several major tectonic plates meet. As a result, earthquakes of varying strengths occur frequently across the country, and its strict building standards and advanced early warning systems help reduce the risk of major disasters.