M6.0 earthquake in Japan on August 23, 2026

Strong M6.0 quake: August 23, 2026, 13:44 UTC, epicenter 32 km south of Honchō. The rupture began 41 km below the surface. It was a shallow quake, and shallow quakes are usually felt most strongly at the surface.

6.0magnitude

41 kmdepth

13:44time UTC

greenUSGS alert

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Key facts

12 people reported feeling it to USGS. The USGS PAGER system issued a green alert, expecting little impact.

Nearest cities

Obihiro (Japan)123 km
Tomakomai (Japan)132 km
Ebetsu (Japan)174 km
Kushiro (Japan)180 km
Otaru (Japan)210 km

Did you feel an earthquake?

Report it to seismologists. These reports help work out quickly where the shaking was strongest. It takes a minute.

Report to USGS (Did You Feel It?)Report to EMSC (LastQuake)

Aftershocks

Since then USGS has recorded 9 quakes of magnitude 4.5 or more within 150 km, the strongest M4.9.

M4.9 · Sep 6, 05:15 UTC124 km
M4.8 · Aug 27, 19:54 UTC140 km
M4.7 · Oct 21, 14:40 UTC82 km
M4.7 · Sep 13, 08:31 UTC131 km
M4.6 · Sep 1, 19:21 UTC70 km
M4.6 · Aug 27, 22:13 UTC52 km
M4.5 · Oct 12, 03:44 UTC142 km
M4.5 · Aug 30, 00:14 UTC26 km

Regional history

Since 1976 there have been 117 earthquakes of magnitude 6 or more within 300 km. The strongest was M8.2 (September 25, 2003).

M8.2 · September 25, 200392 km
M7.8 · December 28, 1994156 km
M7.6 · December 8, 2025108 km
M7.6 · January 15, 1993177 km
M7.4 · April 20, 2026210 km