Japan earthquakes

M4.1 earthquake 5 km WSW of Tsukuba, Japan

A magnitude 4.1 earthquake struck 5 km WSW of Tsukuba, Japan on Fri, Jul 31, 2026, 11:40 AM JST (02:40 UTC), 97 km (60 mi) below the surface.

A larger quake followed: M5.8 3 km E of Fujishiro, Japan. This one was a foreshock.

Shimo-tsuma forecastMore in Japan

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.1 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2026-07-31 02:40:28 UTC
Depth
97.3 km (60.5 mi), intermediate-depth
Epicenter
36.183° N, 140.048° 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 8.9 km horizontally, 8.8 km in depth
Magnitude uncertainty
±0.18
Depth from
From location
Station coverage gap
139°
Stations used
20

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 4.35 km WNW of Ōami, Japan · 56 days ago · 59 km deep · 75 km away
  2. 4.29 km WNW of Kitaibaraki, Japan · 55 days ago · 10 km deep · 89 km away
  3. 4.13 km N of Mobara, Japan · 55 days ago · 60 km deep · 84 km away
  4. 4.61 km WSW of Inzai, Japan · 53 days ago · 77 km deep · 40 km away
  5. 4.318 km E of Funaishikawa, Japan · 43 days ago · 50 km deep · 72 km away · felt by 1
  6. 5.83 km E of Fujishiro, Japan · 40 days ago · 61 km deep · 31 km away · felt by 156
  7. 4.26 km N of Ashikaga, Japan · 37 days ago · 78 km deep · 59 km away
  8. 4.77 km ENE of Hasaki, Japan · 33 days ago · 35 km deep · 91 km away · felt by 12
  9. 4.81 km SE of Ishige, Japan · 15 days ago · 80 km deep · 10 km away · felt by 73
  10. 4.31 km SSW of Kōzaki, Japan · 5 days ago · 76 km deep · 45 km away
  11. 4.92 km SW of Sakai, Japan · 3 days ago · 71 km deep · 27 km away · felt by 69

Before

  1. 4.65 km SSE of Asahi, Japan · 78 days ago · 44 km deep · 80 km away · felt by 2
  2. 4.33 km NE of Asahi, Japan · 92 days ago · 52 km deep · 75 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000th57. Read Thu, Oct 1, 2026, 8:54 PM UTC.