Update: 5.4 magnitude earthquake detected close to Yamada, Japan on Aug. 6

Published Aug 6, 2026

A 5.4 magnitude quake hit near Yamada on Thursday morning, according to the U.S. Geological Survey.

The USGS reported a tremor in the region at 17:43 UTC (03:43 local time). The epicenter was about 145 km east of Yamada, at a depth of 10 km.

Did you feel it?

If you experienced the earthquake, you can report it via 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 and fires 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.

Quakes past week

In the past week, two tremors greater than magnitude 2.5 have been centered in the area. The stronger, a magnitude 4.5 quake, was recorded near Miyako on Aug. 4. The other, measuring 4.1, was felt near Yamada on Jul. 1.

Source: The U.S. Geological Survey