- South Pacific Ocean, 144 km west of Nuku\'alofa, Tongatapu, on Sunday, 27 July 2003 at 02:04 (GMT)

 - South Pacific Ocean, 144 km west of Nuku\'alofa, Tongatapu, on Sunday, 27 July 2003 at 02:04 (GMT)

Tremblement de terre fort magnitude 6.6 at 213 km depth

Date & time: 27 Jul 2003 02:04:11 UTC
Magnitude: 6.6
Profondeur: 212.9 km
Epicenter latitude / longitude: 21.08°S / 176.585°W (South Pacific Ocean, Tonga)
Volcan le plus près: Unnamed 21.15°S/175.75°W (87 km / 54 mi)
Nearby towns and cities:
143 km O de Haveluloto (pop: 3,420) --> Voir les séismes à proximité!
144 km O de Nuku'alofa (pop: 22,400) --> Voir les séismes à proximité!
144 km O de Nuku‘alofa (pop: 22,400) --> Voir les séismes à proximité!
158 km O de Kolonga (pop: 1,100) --> Voir les séismes à proximité!
172 km O de ‘Ohonua (Ohonua) (pop: 1,240) --> Voir les séismes à proximité!
272 km OSO de Pangai (pop: 1,740) --> Voir les séismes à proximité!
383 km SO de Neiafu (pop: 4,320) --> Voir les séismes à proximité!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 5 x 1014 joules (139 gigawatt hours, equivalent to 1.2 x 105 tons of TNT or 7.5 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 6.6213 kmFiji region (Tonga)USGS
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 (7 quakes):
  • 03 Jan 2004 07:16 UTC
    | M 4.5 |
    269.2 km (167.3 mi) depth
    |
    85 km (53 mi) distance
    | USGS | Details
  • 27 Dec 2003 00:30 UTC
    | M 4.6 |
    33 km (20.5 mi) depth
    |
    107 km (67 mi) distance
    | USGS | Details
  • 22 Nov 2003 11:23 UTC
    | M 4.4 |
    100 km (62.1 mi) depth
    |
    98 km (61 mi) distance
    | USGS | Details
  • 19 Nov 2003 10:40 UTC
    | M 4.8 |
    100 km (62.1 mi) depth
    |
    97 km (60 mi) distance
    | USGS | Details
  • 13 Oct 2003 04:26 UTC
    | M 4.9 |
    300 km (186.4 mi) depth
    |
    97 km (60 mi) distance
    | USGS | Details
  • 21 Aug 2003 17:29 UTC
    | M 4.4 |
    33 km (20.5 mi) depth
    |
    115 km (71 mi) distance
    | USGS | Details
  • 14 Aug 2003 08:41 UTC
    | M 4.8 |
    33 km (20.5 mi) depth
    |
    101 km (63 mi) distance
    | USGS | Details

Earlier earthquakes in the same area

- South Pacific Ocean, 144 km west of Nuku'alofa, Tongatapu, on Sunday, 27 July 2003 at 02:04 (GMT)
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