Japan earthquakes

M5.4 earthquake 36 km ESE of Hitachi, Japan

A magnitude 5.4 earthquake struck 36 km ESE of Hitachi, Japan on Mon, Aug 16, 1982, 1:58 AM JST (16:58 UTC), 50 km (31 mi) below the surface.

A larger quake followed: M5.6 79 km ESE of Hitachi, Japan. This one was a foreshock.

Hitachi 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
5.4 (mb), moderate
Local time
UTC
1982-08-15 16:58:15 UTC
Depth
50.0 km (31.1 mi), shallow
Epicenter
36.496° N, 141.033° 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
CONSTRAINED_BY_DEPTH_PHASES

Nearest places

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

Nearby

Within 100 km, magnitude 2.4 and up: 10 in the 60 days after this one and 41 in the 30 days before it.

After

  1. 3.947 km ESE of Hitachi, Japan · 16105 days ago · 52 km deep · 11 km away
  2. 5.679 km ESE of Hitachi, Japan · 16102 days ago · 36 km deep · 43 km away
  3. 4.816 km E of Iwaki, Japan · 16097 days ago · 63 km deep · 65 km away
  4. 4.250 km ESE of Hitachi, Japan · 16094 days ago · 50 km deep · 16 km away
  5. 4.233 km ESE of ?arai, Japan · 16093 days ago · 42 km deep · 36 km away
  6. 4.251 km ESE of Hitachi, Japan · 16090 days ago · 53 km deep · 17 km away
  7. 4.44 km SE of Karasuyama, Japan · 16079 days ago · 123 km deep · 78 km away
  8. 4.871 km ENE of Kashima-shi, Japan · 16076 days ago · 48 km deep · 46 km away
  9. 4.586 km ENE of Hasaki, Japan · 16073 days ago · 33 km deep · 86 km away
  10. 4.2109 km ENE of Hasaki, Japan · 16064 days ago · 33 km deep · 78 km away

Before

  1. 5.430 km ESE of Hitachi, Japan · 16112 days ago · 59 km deep · 10 km away
  2. 4.473 km NE of Hasaki, Japan · 16123 days ago · 33 km deep · 54 km away
  3. 4.863 km ENE of Kashima-shi, Japan · 16123 days ago · 33 km deep · 44 km away
  4. 4.255 km ESE of Hitachi, Japan · 16123 days ago · 33 km deep · 20 km away
  5. 4.367 km NE of Hasaki, Japan · 16123 days ago · 33 km deep · 55 km away
  6. 4.181 km ESE of Takahagi, Japan · 16125 days ago · 33 km deep · 48 km away
  7. 5.0near the east coast of Honshu, Japan · 16128 days ago · 55 km deep · 80 km away
  8. 4.5109 km ESE of Kitaibaraki, Japan · 16129 days ago · 33 km deep · 79 km away
  9. 4.056 km ENE of Kashima-shi, Japan · 16131 days ago · 33 km deep · 41 km away
  10. 4.0115 km ENE of Hasaki, Japan · 16131 days ago · 33 km deep · 81 km away
  11. 4.9103 km ESE of Kitaibaraki, Japan · 16131 days ago · 33 km deep · 72 km away
  12. 5.0120 km ENE of Hasaki, Japan · 16131 days ago · 36 km deep · 95 km away
  13. 5.594 km ESE of Takahagi, Japan · 16131 days ago · 45 km deep · 58 km away
  14. 4.991 km ENE of Hasaki, Japan · 16131 days ago · 49 km deep · 71 km away
  15. 4.471 km ESE of Takahagi, Japan · 16132 days ago · 33 km deep · 39 km away
  16. 4.758 km ESE of Takahagi, Japan · 16132 days ago · 33 km deep · 26 km away
  17. 4.597 km ENE of Hasaki, Japan · 16132 days ago · 33 km deep · 87 km away
  18. 4.887 km ENE of Hasaki, Japan · 16132 days ago · 49 km deep · 80 km away
  19. 4.957 km ESE of Namie, Japan · 16132 days ago · 39 km deep · 92 km away
  20. 3.869 km E of ?arai, Japan · 16133 days ago · 33 km deep · 34 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001p2j (also filed as gcmtb081582b, gcmt19820815165815, iscgem593836). Read Wed, Sep 23, 2026, 2:06 PM UTC.