Japan earthquakes

M4.2 earthquake 110 km S of Honchō, Japan

A magnitude 4.2 earthquake struck 110 km S of Honchō, Japan on Tue, Jul 28, 2026, 3:40 AM JST (18:40 UTC), 45 km (28 mi) below the surface.

A larger quake followed: M5.5 63 km E of Mutsu, Japan. This one was a foreshock.

Shizunai-furukawachō 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
4.2 (mb), light
Local time
UTC
2026-07-27 18:40:22 UTC
Depth
44.8 km (27.9 mi), shallow
Epicenter
41.139° N, 143.047° 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 4.5 km horizontally, 7.9 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
134°
Stations used
38

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 13 since this one and 4 in the 30 days before it.

After

  1. 5.563 km E of Mutsu, Japan · 53 days ago · 75 km deep · 93 km away · felt by 7
  2. 4.264 km ENE of Noda, Japan · 49 days ago · 39 km deep · 97 km away
  3. 4.364 km NE of Kuji, Japan · 49 days ago · 50 km deep · 87 km away
  4. 4.290 km ENE of Hachinohe, Japan · 43 days ago · 44 km deep · 58 km away
  5. 4.881 km SW of Urakawa, Japan · 42 days ago · 69 km deep · 93 km away
  6. 4.487 km E of Noda, Japan · 39 days ago · 35 km deep · 100 km away
  7. 4.244 km SE of Honchō, Japan · 34 days ago · 48 km deep · 79 km away
  8. 6.032 km SSW of Honchō, Japan · 30 days ago · 41 km deep · 82 km away · felt by 12
  9. 4.599 km ENE of Noda, Japan · 29 days ago · 35 km deep · 80 km away
  10. 4.869 km NE of Kuji, Japan · 26 days ago · 59 km deep · 81 km away
  11. 4.675 km ENE of Mutsu, Japan · 21 days ago · 62 km deep · 99 km away
  12. 4.5159 km ENE of Noda, Japan · 18 days ago · 34 km deep · 70 km away
  13. 4.9113 km ENE of Kuji, Japan · 17 days ago · 40 km deep · 46 km away

Before

  1. 4.1115 km E of Noda, Japan · 62 days ago · 36 km deep · 97 km away
  2. 4.5100 km ENE of Misawa, Japan · 81 days ago · 56 km deep · 51 km away
  3. 4.670 km ENE of Hachinohe, Japan · 83 days ago · 56 km deep · 78 km away
  4. 4.237 km SSW of Urakawa, Japan · 83 days ago · 57 km deep · 89 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000tg64. Read Tue, Sep 22, 2026, 9:41 PM UTC.