Indonesia earthquakes

M3.5 earthquake 77 km SSE of Biak, Indonesia

A magnitude 3.5 earthquake struck 77 km SSE of Biak, Indonesia on Wed, Sep 12, 1979, 10:42 PM GMT+9 (13:42 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.9 42 km E of Biak, Indonesia. This one was a foreshock.

Biak forecastMore in Indonesia

Map

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

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The earthquake

Magnitude
3.5 (mb), minor
Local time
UTC
1979-09-12 13:42:05 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
1.861° S, 136.230° E
Region
Indonesia
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
OPERATOR_ASSIGNED
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 22 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 3.288 km S of Biak, Indonesia · 17177 days ago · 33 km deep · 15 km away
  2. 5.942 km E of Biak, Indonesia · 17176 days ago · 26 km deep · 84 km away
  3. 5.652 km ENE of Biak, Indonesia · 17176 days ago · 33 km deep · 98 km away
  4. 5.153 km E of Biak, Indonesia · 17176 days ago · 33 km deep · 87 km away
  5. 4.351 km ENE of Biak, Indonesia · 17176 days ago · 33 km deep · 96 km away
  6. 4.829 km ESE of Biak, Indonesia · 17176 days ago · 33 km deep · 66 km away
  7. 3.487 km SSE of Biak, Indonesia · 17175 days ago · 33 km deep · 10 km away
  8. 5.565 km SSE of Biak, Indonesia · 17170 days ago · 33 km deep · 12 km away
  9. 4.326 km ENE of Biak, Indonesia · 17163 days ago · 33 km deep · 90 km away
  10. 4.615 km NE of Biak, Indonesia · 17162 days ago · 33 km deep · 85 km away
  11. 5.473 km SSE of Biak, Indonesia · 17161 days ago · 33 km deep · 24 km away
  12. 5.737 km E of Biak, Indonesia · 17143 days ago · 33 km deep · 81 km away
  13. 5.047 km E of Biak, Indonesia · 17143 days ago · 33 km deep · 84 km away
  14. 6.057 km E of Biak, Indonesia · 17142 days ago · 33 km deep · 88 km away
  15. 5.350 km E of Biak, Indonesia · 17142 days ago · 33 km deep · 75 km away
  16. 5.448 km E of Biak, Indonesia · 17141 days ago · 33 km deep · 82 km away
  17. 5.054 km E of Biak, Indonesia · 17141 days ago · 33 km deep · 91 km away
  18. 4.958 km E of Biak, Indonesia · 17141 days ago · 33 km deep · 94 km away
  19. 5.264 km E of Biak, Indonesia · 17141 days ago · 33 km deep · 92 km away
  20. 5.358 km E of Biak, Indonesia · 17128 days ago · 33 km deep · 84 km away
  21. 4.373 km S of Biak, Indonesia · 17127 days ago · 33 km deep · 14 km away
  22. 5.854 km E of Biak, Indonesia · 17127 days ago · 26 km deep · 89 km away

Before

  1. 5.285 km SSE of Biak, Indonesia · 17177 days ago · 33 km deep · 29 km away
  2. 4.3123 km SSE of Biak, Indonesia · 17177 days ago · 33 km deep · 55 km away
  3. 4.867 km SSW of Biak, Indonesia · 17177 days ago · 33 km deep · 33 km away
  4. 5.567 km SSW of Biak, Indonesia · 17177 days ago · 33 km deep · 52 km away
  5. 5.653 km SSE of Biak, Indonesia · 17177 days ago · 33 km deep · 25 km away
  6. 5.270 km SSE of Biak, Indonesia · 17177 days ago · 33 km deep · 26 km away
  7. 7.955 km S of Biak, Indonesia · 17177 days ago · 5 km deep · 29 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00012x2. Read Tue, Sep 22, 2026, 12:14 PM UTC.