M4.6 earthquake 1 km WSW of Inzai, Japan
A magnitude 4.6 earthquake struck 1 km WSW of Inzai, Japan on Sun, Aug 9, 2026, 6:59 PM JST (09:59 UTC), 77 km (48 mi) below the surface.
A larger quake followed: M5.8 3 km E of Fujishiro, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2026-08-09 09:59:34 UTC
- Depth
- 77.4 km (48.1 mi), intermediate-depth
- Epicenter
- 35.829° N, 140.147° E
- Region
- Japan
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.3 km horizontally, 7.4 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- From location
- Station coverage gap
- 71°
- Stations used
- 34
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 8 since this one and 5 in the 30 days before it.
After
- 4.318 km E of Funaishikawa, Japan · 42 days ago · 50 km deep · 89 km away · felt by 1
- 5.83 km E of Fujishiro, Japan · 39 days ago · 61 km deep · 10 km away · felt by 156
- 4.26 km N of Ashikaga, Japan · 36 days ago · 78 km deep · 90 km away
- 4.77 km ENE of Hasaki, Japan · 33 days ago · 35 km deep · 69 km away · felt by 12
- 4.81 km SE of Ishige, Japan · 15 days ago · 80 km deep · 35 km away · felt by 73
- 4.31 km SSW of Kōzaki, Japan · 4 days ago · 76 km deep · 23 km away
- 4.92 km SW of Sakai, Japan · 2 days ago · 71 km deep · 43 km away · felt by 69
- 4.412 km SSE of Hasaki, Japan · 7 hr ago · 35 km deep · 70 km away
Before
- 4.13 km N of Mobara, Japan · 54 days ago · 60 km deep · 43 km away
- 4.35 km WNW of Ōami, Japan · 55 days ago · 59 km deep · 34 km away
- 4.15 km WSW of Tsukuba, Japan · 62 days ago · 97 km deep · 40 km away
- 4.426 km E of Hasaki, Japan · 75 days ago · 48 km deep · 89 km away
- 4.65 km SSE of Asahi, Japan · 77 days ago · 44 km deep · 50 km away · felt by 2
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000tker. Read Thu, Oct 1, 2026, 3:53 AM UTC.