A 5.4 magnitude quake occurred close to Koshima on Saturday evening, the U.S. Geological Survey reported.

The tremor shook at 11:12 UTC (20:12 local time), with its epicenter roughly 84 km south of Koshima and a depth of 22 km.

Did you feel it?

If you felt the earthquake, you can share your observations using the USGS Felt Report form.

Impact and estimated losses

The USGS categorized this as a Green Alert, which means there is a low likelihood of casualties and damage. Recent earthquakes in this area have caused secondary hazards such as landslides that might have contributed to losses.

Structure information summary
Overall, the population in this region resides in structures that are resistant to earthquake shaking, though vulnerable structures exist. The predominant vulnerable building types are heavy wood frame and reinforced/confined masonry construction.

Source: The U.S. Geological Survey