Japan earthquakes

M5.0 earthquake 58 km E of ?hara, Japan

A magnitude 5.0 earthquake struck 58 km E of ?hara, Japan on Thu, Apr 6, 1978, 9:37 PM JST (12:37 UTC), 27 km (17 mi) below the surface.

A larger quake followed: M5.9 58 km E of ?hara, Japan. This one was a foreshock.

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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
5.0 (mb, body-wave), moderate
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1978-04-06 12:37:37 UTC
Depth
27.0 km (16.8 mi), shallow
Epicenter
35.176° N, 141.026° 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.

Stations used
64

Nearest places

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

Nearby

Within 100 km, magnitude 2.0 and up: 12 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 4.556 km E of ?hara, Japan · 17710 days ago · 45 km deep · 2 km away
  2. 4.378 km SSE of Hasaki, Japan · 17710 days ago · 33 km deep · 21 km away
  3. 5.255 km E of ?hara, Japan · 17710 days ago · 38 km deep · 7 km away
  4. 5.958 km E of ?hara, Japan · 17710 days ago · 31 km deep · 4 km away
  5. 4.780 km SSE of Hasaki, Japan · 17710 days ago · 19 km deep · 25 km away
  6. 4.284 km SSE of Hasaki, Japan · 17710 days ago · 15 km deep · 27 km away
  7. 5.02 km WNW of Asahi, Japan · 17709 days ago · 57 km deep · 71 km away
  8. 4.516 km SSW of Hasaki, Japan · 17705 days ago · 55 km deep · 50 km away
  9. 4.583 km SSE of Hasaki, Japan · 17700 days ago · 33 km deep · 30 km away
  10. 4.5140 km ESE of ?hara, Japan · 17687 days ago · 33 km deep · 90 km away
  11. 4.55 km ESE of Mobara, Japan · 17662 days ago · 35 km deep · 67 km away
  12. 4.3135 km SE of Hasaki, Japan · 17661 days ago · 33 km deep · 95 km away

Before

  1. 4.666 km SE of Katsuura, Japan · 17710 days ago · 70 km deep · 53 km away
  2. 4.856 km SSE of Hasaki, Japan · 17711 days ago · 40 km deep · 13 km away
  3. 4.747 km NE of Hasaki, Japan · 17739 days ago · 42 km deep · 96 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0000ty1. Read Thu, Oct 1, 2026, 4:28 PM UTC.