Japan earthquakes

M5.8 earthquake 139 km E of Miyako, Japan

A magnitude 5.8 earthquake struck 139 km E of Miyako, Japan on Wed, Jun 26, 1968, 8:33 AM JST (23:33 UTC), 24 km (15 mi) below the surface.

A larger quake followed: M6.1 140 km ENE of Noda, Japan. This one was a foreshock.

Miyako 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
5.8 (Mw, moment), moderate
Magnitude from
ISC-GEM global catalog
Local time
UTC
1968-06-25 23:33:20 UTC
Depth
24.3 km (15.1 mi), shallow
Epicenter
39.604° N, 143.565° 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.

Magnitude uncertainty
±0.20
Depth from
From location

Nearest places

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

Nearby

Within 100 km, magnitude 2.8 and up: 9 in the 60 days after this one and 16 in the 30 days before it.

After

  1. 5.5150 km E of Miyako, Japan · 21278 days ago · 10 km deep · 20 km away
  2. 5.587 km E of Yamada, Japan · 21271 days ago · 27 km deep · 54 km away
  3. 5.9134 km E of Noda, Japan · 21270 days ago · 19 km deep · 76 km away
  4. 6.0109 km E of Yamada, Japan · 21269 days ago · 22 km deep · 30 km away
  5. 6.0113 km E of Miyako, Japan · 21269 days ago · 20 km deep · 26 km away
  6. 5.6164 km E of Noda, Japan · 21262 days ago · 24 km deep · 81 km away
  7. 5.7145 km ENE of Miyako, Japan · 21257 days ago · 21 km deep · 36 km away
  8. 6.1140 km ENE of Noda, Japan · 21257 days ago · 26 km deep · 87 km away
  9. 5.6184 km E of Noda, Japan · 21250 days ago · 16 km deep · 91 km away

Before

  1. 6.1166 km E of Noda, Japan · 21289 days ago · 21 km deep · 90 km away
  2. 5.899 km E of Yamada, Japan · 21292 days ago · 29 km deep · 41 km away
  3. 5.9168 km E of Noda, Japan · 21293 days ago · 20 km deep · 72 km away
  4. 5.681 km E of Yamada, Japan · 21296 days ago · 20 km deep · 61 km away
  5. 5.791 km E of Yamada, Japan · 21296 days ago · 25 km deep · 57 km away
  6. 5.885 km E of Yamada, Japan · 21297 days ago · 24 km deep · 56 km away
  7. 6.191 km E of Yamada, Japan · 21297 days ago · 34 km deep · 51 km away
  8. 5.999 km ESE of Yamada, Japan · 21297 days ago · 17 km deep · 59 km away
  9. 5.7122 km ESE of Yamada, Japan · 21297 days ago · 16 km deep · 50 km away
  10. 5.891 km E of Yamada, Japan · 21298 days ago · 23 km deep · 50 km away
  11. 5.897 km E of Yamada, Japan · 21298 days ago · 31 km deep · 42 km away
  12. 6.288 km E of Yamada, Japan · 21298 days ago · 31 km deep · 58 km away
  13. 5.596 km ESE of Yamada, Japan · 21298 days ago · 25 km deep · 64 km away
  14. 7.087 km E of Yamada, Japan · 21298 days ago · 32 km deep · 53 km away
  15. 5.5191 km E of Noda, Japan · 21301 days ago · 10 km deep · 89 km away
  16. 5.5175 km E of Noda, Japan · 21312 days ago · 35 km deep · 79 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event iscgem821218. Read Sun, Oct 4, 2026, 4:11 PM UTC.