Moderate mag. 5.9 earthquake - South of Tonga (New Zealand) on Monday, 20 September 1982 at 13:48 (GMT)

Moderate mag. 5.9 earthquake  - South of Tonga (New Zealand) on Monday, 20 September 1982 at 13:48 (GMT)

Moderate magnitude 5.9 earthquake at 33 km depth

Date & time: 20 Sep 1982 01:48:32 UTC###AGESTRINGCOPY###
Magnitude: 5.9
Depth: 33.0 km
Epicenter latitude / longitude: 26.886°S / 175.873°W (New Zealand)
Nearest volcano: Hinepuia (149 km / 93 mi)
Nearby towns and cities:
625 km (388 mi) S of ‘Ohonua (Ohonua, 'Eua, Tonga) (pop: 1,240)
640 km (397 mi) S of Lapaha (Mua, Tongatapu, Tonga) (pop: 8,000)
643 km (399 mi) S of Nuku‘alofa (Nuku'alofa, Tongatapu, Tonga) (pop: 22,400)
Primary data source: USGS
Estimated released energy: 4.5 x 1013 joules (12.4 gigawatt hours, equivalent to 10676 tons of TNT or 0.7 atomic bombs!) [learn more]
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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 5.933 kmsouth of Tonga (New Zealand)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 5.9 quake South of Tonga (New Zealand) 20 September 13:48 UTC

More info
Recorded aftershocks, latest first (6 quakes):
  • 15 Oct 1982 22:33 UTC
    | M 4.7 |
    33 km (20.5 mi) depth
    |
    50 km (31 mi) distance
    | USGS | Details
  • 23 Sep 1982 23:59 UTC
    | M 4.9 |
    33 km (20.5 mi) depth
    |
    27 km (17 mi) distance
    | USGS | Details
  • 22 Sep 1982 21:25 UTC
    | M 5.2 |
    33 km (20.5 mi) depth
    |
    23 km (15 mi) distance
    | USGS | Details
  • 20 Sep 1982 19:32 UTC
    | M 5.3 |
    33 km (20.5 mi) depth
    |
    53 km (33 mi) distance
    | USGS | Details
  • 20 Sep 1982 19:30 UTC
    | M 4.7 |
    33 km (20.5 mi) depth
    |
    29 km (18 mi) distance
    | USGS | Details
  • 20 Sep 1982 17:05 UTC
    | M 5.8 |
    33 km (20.5 mi) depth
    |
    34 km (21 mi) distance
    | USGS | Details

Earlier earthquakes in the same area

Moderate mag. 5.9 earthquake - South of Tonga (New Zealand) on Monday, 20 September 1982 at 13:48 (GMT)
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