Japan earthquakes

M5.8 earthquake 184 km ENE of Miyako, Japan

A magnitude 5.8 earthquake struck 184 km ENE of Miyako, Japan on Mon, May 20, 1968, 12:16 PM JST (03:16 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M5.9 170 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), moderate
Local time
UTC
1968-05-20 03:16:19 UTC
Depth
15.0 km (9.3 mi), shallow
Epicenter
40.181° N, 143.986° 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 2.5 and up: 17 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 5.9170 km ENE of Noda, Japan · 21309 days ago · 24 km deep · 32 km away
  2. 5.6153 km E of Noda, Japan · 21306 days ago · 17 km deep · 36 km away
  3. 5.5166 km E of Noda, Japan · 21305 days ago · 17 km deep · 19 km away
  4. 6.1121 km E of Noda, Japan · 21304 days ago · 36 km deep · 64 km away
  5. 5.6146 km ENE of Kuji, Japan · 21304 days ago · 28 km deep · 81 km away
  6. 5.5175 km E of Noda, Japan · 21300 days ago · 35 km deep · 14 km away
  7. 5.6182 km SSE of Honchō, Japan · 21290 days ago · 26 km deep · 53 km away
  8. 5.5191 km E of Noda, Japan · 21289 days ago · 10 km deep · 16 km away
  9. 5.9168 km E of Noda, Japan · 21281 days ago · 20 km deep · 17 km away
  10. 6.1166 km E of Noda, Japan · 21276 days ago · 21 km deep · 32 km away
  11. 5.8139 km E of Miyako, Japan · 21273 days ago · 24 km deep · 74 km away
  12. 5.5150 km E of Miyako, Japan · 21266 days ago · 10 km deep · 54 km away
  13. 5.5178 km ENE of Noda, Japan · 21259 days ago · 15 km deep · 49 km away
  14. 5.9134 km E of Noda, Japan · 21258 days ago · 19 km deep · 52 km away
  15. 6.0109 km E of Yamada, Japan · 21256 days ago · 22 km deep · 96 km away
  16. 6.0113 km E of Miyako, Japan · 21256 days ago · 20 km deep · 88 km away
  17. 5.6164 km E of Noda, Japan · 21250 days ago · 24 km deep · 27 km away

Before

  1. 6.1137 km SSE of Honchō, Japan · 21310 days ago · 37 km deep · 100 km away
  2. 5.8180 km SSE of Honchō, Japan · 21312 days ago · 23 km deep · 55 km away
  3. 6.1112 km E of Miyako, Japan · 21312 days ago · 38 km deep · 86 km away
  4. 6.4191 km SSE of Hiroo, Japan · 21312 days ago · 14 km deep · 52 km away
  5. 5.6155 km E of Miyako, Japan · 21312 days ago · 21 km deep · 58 km away
  6. 6.2134 km E of Miyako, Japan · 21312 days ago · 35 km deep · 67 km away
  7. 6.5111 km E of Miyako, Japan · 21313 days ago · 48 km deep · 77 km away
  8. 6.7146 km E of Miyako, Japan · 21313 days ago · 25 km deep · 52 km away
  9. 8.21968 Tokachi-Oki Earthquake · 21313 days ago · 27 km deep · 95 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event iscgem822379. Read Tue, Sep 22, 2026, 11:19 AM UTC.