Japan earthquakes

M4.9 earthquake 77 km E of Mutsu, Japan

A magnitude 4.9 earthquake struck 77 km E of Mutsu, Japan on Sat, Apr 10, 1982, 8:41 AM JST (23:41 UTC), 72 km (45 mi) below the surface.

A larger quake followed: M5.2 72 km NE of Mutsu, Japan. This one was a foreshock.

Mutsu forecastMore in Japan

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

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The earthquake

Magnitude
4.9 (mb), light
Local time
UTC
1982-04-09 23:41:43 UTC
Depth
72.1 km (44.8 mi), intermediate-depth
Epicenter
41.383° N, 142.139° 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.

Depth from
FROM_LOCATION

Nearest places

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

Nearby

Within 100 km, magnitude 1.9 and up: 6 in the 60 days after this one and 25 in the 30 days before it.

After

  1. 4.539 km SSE of Shizunai-furukawach?, Japan · 16236 days ago · 46 km deep · 77 km away
  2. 5.272 km NE of Mutsu, Japan · 16235 days ago · 73 km deep · 54 km away
  3. 5.037 km SE of Shizunai-furukawach?, Japan · 16234 days ago · 33 km deep · 86 km away
  4. 5.235 km SE of Shizunai-furukawach?, Japan · 16195 days ago · 50 km deep · 87 km away
  5. 4.965 km ENE of Mutsu, Japan · 16190 days ago · 52 km deep · 18 km away
  6. 4.557 km E of Mutsu, Japan · 16184 days ago · 105 km deep · 20 km away

Before

  1. 4.529 km S of Shizunai-furukawach?, Japan · 16241 days ago · 33 km deep · 79 km away
  2. 4.642 km SE of Shizunai-furukawach?, Japan · 16243 days ago · 71 km deep · 84 km away
  3. 4.733 km S of Shizunai-furukawach?, Japan · 16247 days ago · 44 km deep · 77 km away
  4. 5.318 km SSW of Shizunai-furukawach?, Japan · 16248 days ago · 29 km deep · 90 km away
  5. 5.218 km S of Shizunai-furukawach?, Japan · 16250 days ago · 32 km deep · 89 km away
  6. 4.825 km S of Shizunai-furukawach?, Japan · 16250 days ago · 33 km deep · 83 km away
  7. 5.240 km SSE of Shizunai-furukawach?, Japan · 16251 days ago · 33 km deep · 72 km away
  8. 5.241 km SSE of Shizunai-furukawach?, Japan · 16252 days ago · 29 km deep · 75 km away
  9. 5.339 km SSE of Shizunai-furukawach?, Japan · 16252 days ago · 25 km deep · 73 km away
  10. 4.926 km SE of Shizunai-furukawach?, Japan · 16253 days ago · 33 km deep · 94 km away
  11. 5.415 km SSE of Shizunai-furukawach?, Japan · 16253 days ago · 33 km deep · 97 km away
  12. 5.120 km SSE of Shizunai-furukawach?, Japan · 16253 days ago · 32 km deep · 91 km away
  13. 4.838 km SSE of Shizunai-furukawach?, Japan · 16254 days ago · 34 km deep · 81 km away
  14. 4.838 km ESE of Shizunai-furukawach?, Japan · 16254 days ago · 31 km deep · 99 km away
  15. 4.432 km SW of Shizunai-furukawach?, Japan · 16255 days ago · 85 km deep · 84 km away
  16. 4.821 km SE of Shizunai-furukawach?, Japan · 16255 days ago · 38 km deep · 98 km away
  17. 4.536 km SSE of Shizunai-furukawach?, Japan · 16256 days ago · 57 km deep · 78 km away
  18. 4.817 km S of Shizunai-furukawach?, Japan · 16256 days ago · 63 km deep · 90 km away
  19. 4.729 km S of Shizunai-furukawach?, Japan · 16256 days ago · 60 km deep · 79 km away
  20. 5.817 km SE of Shizunai-furukawach?, Japan · 16256 days ago · 18 km deep · 99 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001km4. Read Tue, Sep 22, 2026, 7:47 PM UTC.