Moderate mag. 5.2 earthquake - Halmahera Sea, 16 km south of Pulau Cinamadoidu Island, Maluku Utara, Indonesia, on Monday, 20 October 1986 at 04:28 (GMT)

Moderate mag. 5.2 earthquake - Halmahera Sea, 16 km south of Pulau Cinamadoidu Island, Maluku Utara, Indonesia, on Monday, 20 October 1986 at 04:28 (GMT)

Moderate magnitude 5.2 earthquake at 130 km depth

Date & time: 20 Oct 1986 04:28:17 UTC
Magnitude: 5.2
Depth: 129.5 km
Epicenter latitude / longitude: 2.073°N / 128.195°E (Halmahera Sea, Indonesia)
Nearest volcano: Tarakan (49 km / 30 mi)
Nearby towns and cities:
44 km (27 mi) NNE of Tobelo (Kabupaten Halmahera Utara) (pop: 10,000) --> See nearby quakes!
165 km (102 mi) NNE of Sofifi (Kota Tidore Kepulauan) (pop: 36,200) --> See nearby quakes!
169 km (105 mi) NNE of Ternate (pop: 101,700) --> See nearby quakes!
341 km (212 mi) ENE of Bitung (pop: 137,400) --> See nearby quakes!
364 km (226 mi) E of Laikit, Laikit II (Dimembe) (Kabupaten Minahasa Utara) (pop: 8,000) --> See nearby quakes!
375 km (233 mi) ENE of Tondano (Kabupaten Minahasa) (pop: 33,300) --> See nearby quakes!
378 km (235 mi) E of Manado (pop: 451,900) --> See nearby quakes!
386 km (240 mi) ENE of Tomohon (pop: 27,600) --> See nearby quakes!
473 km (294 mi) NW of Sorong (pop: 125,500) --> See nearby quakes!
561 km (348 mi) SE of General Santos (Philippines) (pop: 679,600) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 4 x 1012 joules (1.11 gigawatt hours, equivalent to 951 tons of TNT) 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 5.2130 kmHalmahera, IndonesiaUSGS
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.

User reports for this quake

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