Strong mag. 5.4 earthquake - Halmahera Sea, 15 km east of Pulau Jojikula Island, Maluku Utara, Indonesia, on Monday, 21 January 1985 at 04:41 (GMT)
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Strong magnitude 5.4 earthquake at 33 km depth
Date & time: 21 Jan 1985 04:41:27 UTC
Depth: 33.0 km
Epicenter latitude / longitude: 1.138°S / 128.558°E (Halmahera Sea, Indonesia)
Nearest volcano: Bibinoi (102 km / 63 mi)
Nearby towns and cities:
236 km (147 mi) SSE of Sofifi (Kota Tidore Kepulauan) (pop: 36,200) --> See nearby quakes!
248 km (154 mi) N of Amahai (pop: 47,700) --> See nearby quakes!
251 km (156 mi) SSE of Ternate (pop: 101,700) --> See nearby quakes!
288 km (179 mi) N of Ambon City (pop: 355,600) --> See nearby quakes!
302 km (188 mi) W of Sorong (pop: 125,500) --> See nearby quakes!
325 km (202 mi) S of Tobelo (Kabupaten Halmahera Utara) (pop: 10,000) --> See nearby quakes!
473 km (294 mi) SE of Bitung (pop: 137,400) --> See nearby quakes!
488 km (303 mi) ESE of Tondano (Kabupaten Minahasa) (pop: 33,300) --> See nearby quakes!
499 km (310 mi) ESE of Tomohon (pop: 27,600) --> See nearby quakes!
505 km (314 mi) SE of Manado (pop: 451,900) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 7.9 x 1012 joules (2.21 gigawatt hours, equivalent to 1898 tons of TNT or 0.1 atomic bombs!) More info
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.
|M 5.4||33 km||Kepulauan Obi, Indonesia||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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More infoRecorded aftershocks, latest first (2 quakes):
- 25 Jan 1985 12:38 UTC| M 5.0 |63.7 km (39.6 mi) depth|12 km (8 mi) distance| USGS | Details
- 21 Jan 1985 19:29 UTC| M 4.9 |33 km (20.5 mi) depth|18 km (11 mi) distance| USGS | Details