Light mag. 4.5 earthquake - Philippines Sea, 51 km north of Gura Tabailenge Island, North Maluku, Indonesia, on Tuesday, 4 August 1987 at 19:13 (GMT)

Light mag. 4.5 earthquake - Philippines Sea, 51 km north of Gura Tabailenge Island, North Maluku, Indonesia, on Tuesday, 4 August 1987 at 19:13 (GMT)

Light magnitude 4.5 earthquake at 229 km depth

Date & time: 4 Aug 1987 19:13:37 UTC
Magnitude: 4.5
Depth: 228.5 km
Epicenter latitude / longitude: 2.843°N / 128.708°E (Philippines Sea, Indonesia)
Nearest volcano: Tarakan (149 km / 93 mi)
Nearby towns and cities:
146 km (91 mi) NNE of Tobelo (Kabupaten Halmahera Utara) (pop: 10,000) --> See nearby quakes!
267 km (166 mi) NNE of Sofifi (Kota Tidore Kepulauan) (pop: 36,200) --> See nearby quakes!
272 km (169 mi) NNE of Ternate (pop: 101,700) --> See nearby quakes!
420 km (261 mi) ENE of Bitung (pop: 137,400) --> See nearby quakes!
455 km (283 mi) ENE of Manado (pop: 451,900) --> See nearby quakes!
455 km (283 mi) ENE of Tondano (Kabupaten Minahasa) (pop: 33,300) --> See nearby quakes!
466 km (290 mi) ENE of Tomohon (pop: 27,600) --> See nearby quakes!
502 km (312 mi) NW of Sorong (pop: 125,500) --> See nearby quakes!
534 km (332 mi) SSE of Mati (Philippines) (pop: 105,900) --> See nearby quakes!
535 km (332 mi) SE of General Santos City (Philippines) (pop: 679,600) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 3.5 x 1011 joules (98.6 megawatt hours, equivalent to 84.8 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
4.5229 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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