Update: Seismic activity on Dec. 30 – 5.5 magnitude earthquake near Wadomari, Japan registered

Published Jan 23, 2026

Tuesday afternoon, a 5.5 magnitude quake was detected close to Wadomari, according to the U.S. Geological Survey.

At 08:12 UTC (17:12 local time), the region was hit by a tremor. The earthquake struck at a depth of 11 km, with its epicenter approximately 23 km north of Wadomari.

Did you feel it?

If you noticed the quake, you can submit a report through the USGS Felt Report form. So far, the agency has collected 8 online responses from individuals reporting that they felt the tremor. According to the USGS DYFI report, weak shaking was recorded and people in cities like Tomigusuku and Yomitan reported experiencing the earthquake.

DYFI Image

Impact and estimated losses

Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.

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