Moderate mag. 5.9 earthquake - Maluku Sea, 65 km north of Pulau Tuanane Island, Maluku Utara, Indonesia, on Saturday, 4 October 1986 at 02:00 (GMT)

Moderate mag. 5.9 earthquake - Maluku Sea, 65 km north of Pulau Tuanane Island, Maluku Utara, Indonesia, on Saturday, 4 October 1986 at 02:00 (GMT)

Moderate magnitude 5.9 earthquake at 106 km depth

Date & time: 4 Oct 1986 02:00:08 UTC
Magnitude: 5.9
Depth: 106.4 km
Epicenter latitude / longitude: 2.982°N / 128.036°E (Maluku Sea, Indonesia)
Nearest volcano: Tarakan (130 km / 81 mi)
Nearby towns and cities:
139 km (87 mi) N of Tobelo (Kabupaten Halmahera Utara) (pop: 10,000) --> See nearby quakes!
254 km (158 mi) NNE of Ternate (pop: 101,700) --> See nearby quakes!
255 km (159 mi) N of Sofifi (Kota Tidore Kepulauan) (pop: 36,200) --> See nearby quakes!
359 km (223 mi) ENE of Bitung (pop: 137,400) --> See nearby quakes!
392 km (243 mi) ENE of Manado (pop: 451,900) --> See nearby quakes!
394 km (245 mi) ENE of Tondano (Kabupaten Minahasa) (pop: 33,300) --> See nearby quakes!
404 km (251 mi) ENE of Tomohon (pop: 27,600) --> See nearby quakes!
471 km (293 mi) SE of General Santos (Philippines) (pop: 679,600) --> See nearby quakes!
486 km (302 mi) SSE of Mati (Philippines) (pop: 105,900) --> See nearby quakes!
560 km (348 mi) NW of Sorong (pop: 125,500) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 4.5 x 1013 joules (12.4 gigawatt hours, equivalent to 10676 tons of TNT or 0.7 atomic bombs!) More info
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
MagnitudeDepthLocationSource
M 5.9106 kmHalmahera, IndonesiaUSGS
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake yet. If you felt it be the first to report it!
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Aftershocks

More info
Recorded aftershocks, latest first (2 quakes):
  • 09 Oct 1986 14:58 UTC
    | M 5.1 |
    124.7 km (77.5 mi) depth
    |
    4 km (2 mi) distance
    | USGS | Details
  • 07 Oct 1986 15:02 UTC
    | M 4.4 |
    111.2 km (69.1 mi) depth
    |
    16 km (10 mi) distance
    | USGS | Details

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Earlier earthquakes in the same area

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