Very strong mag. 6.3 earthquake - Halmahera Sea, 53 km south of Nusa Pigaraja Island, Maluku Utara, Indonesia, on Monday, 18 October 1965 at 21:50 (GMT)

Very strong mag. 6.3 earthquake - Halmahera Sea, 53 km south of Nusa Pigaraja Island, Maluku Utara, Indonesia, on Monday, 18 October 1965 at 21:50 (GMT)

Tremblement de terre très fort magnitude 6.3 at 25 km depth

Date & time: 18 Oct 1965 21:50:07 UTC
Magnitude: 6.3
Profondeur: 25.0 km
Epicenter latitude / longitude: 1.28°S / 127.725°E (Halmahera Sea, Indonésie)
Volcan le plus près: Bibinoi (57 km / 35 mi)
Nearby towns and cities:
225 km S de Sofifi (Kota Tidore Kepulauan) (pop: 36,200) --> Voir les séismes à proximité!
233 km S de Ternate (pop: 101,700) --> Voir les séismes à proximité!
265 km NNO de Amahai (pop: 47,700) --> Voir les séismes à proximité!
273 km N de Ambon City (pop: 355,600) --> Voir les séismes à proximité!
336 km S de Tobelo (Kabupaten Halmahera Utara) (pop: 10,000) --> Voir les séismes à proximité!
396 km O de Sorong (pop: 125,500) --> Voir les séismes à proximité!
415 km SE de Bitung (pop: 137,400) --> Voir les séismes à proximité!
425 km SE de Tondano (Kabupaten Minahasa) (pop: 33,300) --> Voir les séismes à proximité!
435 km SE de Tomohon (pop: 27,600) --> Voir les séismes à proximité!
444 km SE de Manado (pop: 451,900) --> Voir les séismes à proximité!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.8 x 1014 joules (49.4 gigawatt hours, equivalent to 42502 tons of TNT or 2.7 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.
MagnitudeProfondeurLocationSource
M 6.325 kmKepulauan Obi, 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 (1 quakes):
  • 28 Oct 1965 08:58 UTC
    | M 5.6 |
    25 km (15.5 mi) depth
    |
    3 km (2 mi) distance
    | USGS | Details

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Earlier earthquakes in the same area

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