Strong mag. 6.4 earthquake - Halmahera, Indonesia, on Monday, 27 February 1989 at 23:39 (GMT)

Strong mag. 6.4 earthquake - Halmahera, Indonesia, on Monday, 27 February 1989 at 23:39 (GMT)

Strong magnitude 6.4 earthquake at 54 km depth

Date & time: 27 Feb 1989 23:39:10 UTC
Magnitude: 6.4
Profondeur: 53.7 km
Epicenter latitude / longitude: 2.301°N / 128.009°E (Indonésie)
Volcan le plus près: Tarakan (56 km / 35 mi)
Nearby towns and cities:
64 km N de Tobelo (Kabupaten Halmahera Utara) (pop: 10,000) --> Voir les séismes à proximité!
181 km NNE de Sofifi (Kota Tidore Kepulauan) (pop: 36,200) --> Voir les séismes à proximité!
182 km NNE de Ternate (pop: 101,700) --> Voir les séismes à proximité!
327 km ENE de Bitung (pop: 137,400) --> Voir les séismes à proximité!
349 km ENE de Laikit, Laikit II (Dimembe) (Kabupaten Minahasa Utara) (pop: 8,000) --> Voir les séismes à proximité!
362 km ENE de Tondano (Kabupaten Minahasa) (pop: 33,300) --> Voir les séismes à proximité!
363 km ENE de Manado (pop: 451,900) --> Voir les séismes à proximité!
373 km ENE de Tomohon (pop: 27,600) --> Voir les séismes à proximité!
506 km NO de Sorong (pop: 125,500) --> Voir les séismes à proximité!
2534 km ENE de Jakarta (pop: 8,540,100) --> Voir les séismes à proximité!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.5 x 1014 joules (69.8 gigawatt hours, equivalent to 60036 tons of TNT or 3.8 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 6.454 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 of the 6.4 quake Halmahera, Indonesia, 27 February 1989 23:39 GMT

More info
Recorded aftershocks, latest first (9 quakes):
  • 06 Aug 1989 06:36 UTC
    | M 5.8 |
    113.8 km (70.7 mi) depth
    |
    54 km (33 mi) distance
    | USGS | Details
  • 22 Jul 1989 05:02 UTC
    | M 6.5 |
    141.8 km (88.1 mi) depth
    |
    15 km (9 mi) distance
    | USGS | Strong mag. 6.5 earthquake - Halmahera, Indonesia, on Saturday, 22 July 1989 at 05:02 (GMT)
  • 10 May 1989 08:23 UTC
    | M 5.2 |
    53.9 km (33.5 mi) depth
    |
    63 km (39 mi) distance
    | USGS | Details
  • 23 Mar 1989 03:10 UTC
    | M 5.1 |
    95.4 km (59.3 mi) depth
    |
    29 km (18 mi) distance
    | USGS | Details
  • 28 Feb 1989 06:07 UTC
    | M 5.0 |
    62.2 km (38.6 mi) depth
    |
    6 km (4 mi) distance
    | USGS | Details
  • 28 Feb 1989 05:50 UTC
    | M 5.3 |
    53.4 km (33.2 mi) depth
    |
    10 km (6 mi) distance
    | USGS | Details
  • 28 Feb 1989 05:10 UTC
    | M 5.0 |
    64.1 km (39.8 mi) depth
    |
    28 km (17 mi) distance
    | USGS | Details
  • 28 Feb 1989 01:25 UTC
    | M 5.3 |
    57.6 km (35.8 mi) depth
    |
    5 km (3 mi) distance
    | USGS | Details
  • 28 Feb 1989 00:51 UTC
    | M 5.9 |
    55.9 km (34.7 mi) depth
    |
    10 km (6 mi) distance
    | USGS | Details

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Earlier earthquakes in the same area

Strong mag. 6.4 earthquake - Halmahera, Indonesia, on Monday, 27 February 1989 at 23:39 (GMT)
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