Strong mag. 6.5 earthquake - Tonga on Sunday, 15 May 1983 at 00:24 (GMT)

Strong mag. 6.5 earthquake - Tonga on Sunday, 15 May 1983 at 00:24 (GMT)

Strong magnitude 6.5 earthquake at 33 km depth

Date & time: 15 May 1983 00:24:00 UTC
Magnitude: 6.5
Profondeur: 33.0 km
Epicenter latitude / longitude: 18.907°S / 175.641°W (Tonga)
Volcan le plus près: Metis Shoal (87 km / 54 mi)
Nearby towns and cities:
169 km NO de Pangai (pop: 1,740) --> Voir les séismes à proximité!
177 km O de Neiafu (pop: 4,320) --> Voir les séismes à proximité!
253 km N de Nuku'alofa (pop: 22,400) --> Voir les séismes à proximité!
253 km N de Nuku‘alofa (pop: 22,400) --> Voir les séismes à proximité!
255 km NNO de Kolonga (pop: 1,100) --> Voir les séismes à proximité!
279 km NNO de ‘Ohonua (Ohonua) (pop: 1,240) --> Voir les séismes à proximité!
382 km SSO de Hihifo (pop: 815) --> Voir les séismes à proximité!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 3.5 x 1014 joules (98.6 gigawatt hours, equivalent to 84802 tons of TNT or 5.3 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 6.533 kmTongaUSGS
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 6.5 quake Tonga 15 May 1983 00:24 GMT

More info
Recorded aftershocks, latest first (4 quakes):
  • 26 Oct 1983 02:44 UTC
    | M 4.9 |
    277.1 km (172.2 mi) depth
    |
    45 km (28 mi) distance
    | USGS | Details
  • 24 Jul 1983 17:50 UTC
    | M 4.7 |
    249.1 km (154.8 mi) depth
    |
    65 km (40 mi) distance
    | USGS | Details
  • 14 Jul 1983 09:48 UTC
    | M 5.1 |
    264 km (164 mi) depth
    |
    15 km (10 mi) distance
    | USGS | Details
  • 15 May 1983 02:59 UTC
    | M 4.8 |
    33 km (20.5 mi) depth
    |
    32 km (20 mi) distance
    | USGS | Details

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Earlier earthquakes in the same area

Strong mag. 6.5 earthquake - Tonga on Sunday, 15 May 1983 at 00:24 (GMT)
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