Update: Earthquake of 6.0 magnitude reported near Honchō, Japan on Aug. 23

Published Aug 23, 2026

A 6.0 magnitude quake rocked close to Honchō on Sunday night, according to the U.S. Geological Survey.

The tremor shook the area at 13:44 UTC (23:44 local time). It occurred at a depth of 43 km with the epicenter about 33 km south-southwest of Honchō.

Did you feel it?

If you felt the earthquake, you can submit a report 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 adobe block and unreinforced brick with mud construction.

Area struck by 7.7 quake in 1993
Iwanai District has faced strong earthquakes before. On Jul. 12, 1993, a magnitude 7.7 tremor struck west of Iwanai, at a depth of 10.4 miles.

Source: The U.S. Geological Survey