Indonesia earthquakes

M4.2 earthquake 166 km NW of Tobelo, Indonesia

A magnitude 4.2 earthquake struck 166 km NW of Tobelo, Indonesia on Sun, Oct 26, 1986, 1:45 AM GMT+9 (16:45 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M6.0 153 km WNW of Tobelo, Indonesia. This one was a foreshock.

Tobelo 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
4.2 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1986-10-25 16:45:58 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
2.679° N, 126.850° 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

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 5.2130 km NW of Tobelo, Indonesia · 14577 days ago · 67 km deep · 48 km away
  2. 4.8167 km WNW of Tobelo, Indonesia · 14571 days ago · 78 km deep · 45 km away
  3. 6.0153 km WNW of Tobelo, Indonesia · 14570 days ago · 79 km deep · 30 km away
  4. 5.1Molucca Sea · 14557 days ago · 48 km deep · 100 km away
  5. 4.895 km NNW of Tobelo, Indonesia · 14554 days ago · 62 km deep · 85 km away
  6. 4.8128 km WNW of Tobelo, Indonesia · 14553 days ago · 86 km deep · 80 km away
  7. 4.8143 km WNW of Tobelo, Indonesia · 14543 days ago · 58 km deep · 44 km away

Before

  1. 5.0157 km WNW of Tobelo, Indonesia · 14590 days ago · 76 km deep · 51 km away
  2. 5.0172 km NW of Tobelo, Indonesia · 14592 days ago · 33 km deep · 8 km away
  3. 5.5167 km NW of Tobelo, Indonesia · 14592 days ago · 42 km deep · 12 km away
  4. 5.2169 km NW of Tobelo, Indonesia · 14592 days ago · 33 km deep · 19 km away
  5. 4.5150 km NW of Ternate, Indonesia · 14597 days ago · 33 km deep · 88 km away
  6. 4.4181 km WNW of Tobelo, Indonesia · 14604 days ago · 33 km deep · 67 km away
  7. 4.4149 km NNW of Tobelo, Indonesia · 14610 days ago · 33 km deep · 80 km away
  8. 5.5153 km NNW of Tobelo, Indonesia · 14610 days ago · 46 km deep · 51 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002zbe. Read Fri, Oct 2, 2026, 10:27 AM UTC.