Strong mag. 6.3 earthquake - Tonga (Samoa) on Friday, 3 September 1982 at 23:39 (GMT)

Strong mag. 6.3 earthquake  - Tonga (Samoa) on Friday, 3 September 1982 at 23:39 (GMT)

Strong magnitude 6.3 earthquake at 33 km depth

Date & time: 3 Sep 1982 11:39:39 UTC###AGESTRINGCOPY###
Magnitude: 6.3
Depth: 33.0 km
Epicenter latitude / longitude: 15.296°S / 173.089°W (Samoa)
Nearest volcano: Curacoa (72 km / 45 mi)
Nearby towns and cities:
105 km (65 mi) NE of Hihifo (Tonga) (pop: 815)
191 km (119 mi) SSW of Vailoa (pop: 769)
198 km (123 mi) SW of Mulifanua (pop: 4,510)
203 km (126 mi) SSW of Asau (Vaisigano) (pop: 6,640)
213 km (133 mi) SW of Afega (Malie, Tuamasaga) (pop: 1,900)
216 km (134 mi) SW of Apia (Tuamasaga) (pop: 40,400)
218 km (136 mi) SSW of Safotu (Gaga'ifomauga) (pop: 1,210)
687 km (427 mi) NNE of Nuku‘alofa (Nuku'alofa, Tongatapu, Tonga) (pop: 22,400)
Primary data source: USGS
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.
MagnitudeDepthLocationSource
M 6.333 kmTonga (Samoa)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 of the 6.3 quake Tonga (Samoa) 3 September 23:39 UTC

More info
Recorded aftershocks, latest first (17 quakes):
  • 26 Jan 1983 18:55 UTC
    | M 5.4 |
    41 km (25.5 mi) depth
    |
    45 km (28 mi) distance
    | USGS | Details
  • 19 Jan 1983 13:58 UTC
    | M 4.7 |
    33 km (20.5 mi) depth
    |
    46 km (28 mi) distance
    | USGS | Details
  • 12 Jan 1983 09:58 UTC
    | M 4.9 |
    33 km (20.5 mi) depth
    |
    35 km (22 mi) distance
    | USGS | Details
  • 08 Jan 1983 11:21 UTC
    | M 6.4 |
    33 km (20.5 mi) depth
    |
    28 km (17 mi) distance
    | USGS | Strong mag. 6.4 earthquake - Tonga (Samoa) on Saturday, 8 January 1983 at 11:21 (GMT)
  • 13 Nov 1982 10:26 UTC
    | M 5.1 |
    33 km (20.5 mi) depth
    |
    30 km (19 mi) distance
    | USGS | Details
  • 13 Nov 1982 04:36 UTC
    | M 4.2 |
    33 km (20.5 mi) depth
    |
    50 km (31 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    18158 km (11283 mi) distance
    | | Details
  • 25 Oct 1982 13:42 UTC
    | M 5.0 |
    43 km (26.7 mi) depth
    |
    39 km (24 mi) distance
    | USGS | Details
  • 08 Oct 1982 01:32 UTC
    | M 4.4 |
    33 km (20.5 mi) depth
    |
    36 km (22 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    18158 km (11283 mi) distance
    | | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    18158 km (11283 mi) distance
    | | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    18158 km (11283 mi) distance
    | | Details
  • 30 Sep 1982 14:23 UTC
    | M 5.6 |
    33 km (20.5 mi) depth
    |
    37 km (23 mi) distance
    | USGS | Details
  • 30 Sep 1982 01:54 UTC
    | M 5.2 |
    63.1 km (39.2 mi) depth
    |
    32 km (20 mi) distance
    | USGS | Details
  • 16 Sep 1982 08:23 UTC
    | M 5.6 |
    37 km (23 mi) depth
    |
    59 km (36 mi) distance
    | USGS | Details
  • 08 Sep 1982 05:41 UTC
    | M 5.2 |
    33 km (20.5 mi) depth
    |
    46 km (29 mi) distance
    | USGS | Details
  • 04 Sep 1982 02:08 UTC
    | M 6.3 |
    33 km (20.5 mi) depth
    |
    16 km (10 mi) distance
    | USGS | Strong mag. 6.3 earthquake - Tonga (Samoa) on Saturday, 4 September 1982 at 02:08 (GMT)

Earlier earthquakes in the same area

Strong mag. 6.3 earthquake - Tonga (Samoa) on Friday, 3 September 1982 at 23:39 (GMT)
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