Indonesia earthquakes

M4.6 earthquake 15 km NE of Biak, Indonesia

A magnitude 4.6 earthquake struck 15 km NE of Biak, Indonesia on Thu, Sep 27, 1979, 11:24 PM GMT+9 (14:24 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.4 73 km SSE 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
4.6 (mb), light
Local time
UTC
1979-09-27 14:24:24 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
1.094° S, 136.192° 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
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.6 and up: 15 in the 60 days after this one and 17 in the 30 days before it.

After

  1. 5.473 km SSE of Biak, Indonesia · 17160 days ago · 33 km deep · 77 km away
  2. 5.737 km E of Biak, Indonesia · 17143 days ago · 33 km deep · 26 km away
  3. 5.047 km E of Biak, Indonesia · 17143 days ago · 33 km deep · 36 km away
  4. 6.057 km E of Biak, Indonesia · 17141 days ago · 33 km deep · 46 km away
  5. 5.350 km E of Biak, Indonesia · 17141 days ago · 33 km deep · 42 km away
  6. 5.269 km ENE of Biak, Indonesia · 17141 days ago · 33 km deep · 54 km away
  7. 5.448 km E of Biak, Indonesia · 17141 days ago · 33 km deep · 38 km away
  8. 5.054 km E of Biak, Indonesia · 17141 days ago · 33 km deep · 42 km away
  9. 4.958 km E of Biak, Indonesia · 17141 days ago · 33 km deep · 46 km away
  10. 5.264 km E of Biak, Indonesia · 17141 days ago · 33 km deep · 52 km away
  11. 5.466 km ENE of Biak, Indonesia · 17140 days ago · 33 km deep · 53 km away
  12. 5.358 km E of Biak, Indonesia · 17128 days ago · 33 km deep · 48 km away
  13. 4.373 km S of Biak, Indonesia · 17127 days ago · 33 km deep · 83 km away
  14. 5.854 km E of Biak, Indonesia · 17127 days ago · 26 km deep · 42 km away
  15. 5.082 km E of Biak, Indonesia · 17126 days ago · 33 km deep · 70 km away

Before

  1. 4.326 km ENE of Biak, Indonesia · 17163 days ago · 33 km deep · 12 km away
  2. 5.565 km SSE of Biak, Indonesia · 17170 days ago · 33 km deep · 73 km away
  3. 4.966 km ENE of Biak, Indonesia · 17175 days ago · 33 km deep · 52 km away
  4. 3.487 km SSE of Biak, Indonesia · 17175 days ago · 33 km deep · 95 km away
  5. 4.829 km ESE of Biak, Indonesia · 17176 days ago · 33 km deep · 25 km away
  6. 4.351 km ENE of Biak, Indonesia · 17176 days ago · 33 km deep · 37 km away
  7. 5.153 km E of Biak, Indonesia · 17176 days ago · 33 km deep · 41 km away
  8. 5.652 km ENE of Biak, Indonesia · 17176 days ago · 33 km deep · 39 km away
  9. 5.942 km E of Biak, Indonesia · 17176 days ago · 26 km deep · 31 km away
  10. 3.288 km S of Biak, Indonesia · 17177 days ago · 33 km deep · 98 km away
  11. 3.577 km SSE of Biak, Indonesia · 17177 days ago · 33 km deep · 85 km away
  12. 5.285 km SSE of Biak, Indonesia · 17177 days ago · 33 km deep · 88 km away
  13. 4.867 km SSW of Biak, Indonesia · 17177 days ago · 33 km deep · 80 km away
  14. 5.567 km SSW of Biak, Indonesia · 17177 days ago · 33 km deep · 82 km away
  15. 5.653 km SSE of Biak, Indonesia · 17177 days ago · 33 km deep · 61 km away
  16. 5.270 km SSE of Biak, Indonesia · 17177 days ago · 33 km deep · 74 km away
  17. 7.955 km S of Biak, Indonesia · 17177 days ago · 5 km deep · 67 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000135a. Read Tue, Sep 22, 2026, 10:19 AM UTC.