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Major mag. 7.2 earthquake - South of Tonga on Sunday, 19 December 1982

Major mag. 7.2 earthquake  - South of Tonga on Sunday, 19 December 1982
Date & time: Sunday, 19 December 1982 17:43 UTC
Magnitude: 7.2
Depth: 33.0 km
Epicenter latitude / longitude: 24.133°S / 175.864°W (Tonga)
Nearest volcano: Unnamed 24.8°S/177.02°W (139 km / 86 mi)
Primary data source: USGS
Estimated released energy: 4 x 1015 joules (1106 gigawatt hours, equivalent to 9.5 x 105 tons of TNT or 59.5 atomic bombs!) [learn more]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

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.
TimeMag. / DepthLocationSource
Sun, 19 Dec 17:43 UTCM 7.2 / 33 kmSouth of TongaUSGS
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.

Aftershocks of the 7.2 quake: South of Tonga, 19 Dec 1982 17h43

More info
Recorded aftershocks, latest first (72 quakes):
  • 24 Sep 1984 02:04 UTC
    | M 5.0 |
    33 km (20.5 mi) depth
    |
    33 km (20 mi) distance
    | USGS | Details
  • 22 Sep 1984 05:32 UTC
    | M 5.5 |
    67.5 km (41.9 mi) depth
    |
    18 km (11 mi) distance
    | USGS | Details
  • 20 Sep 1984 04:29 UTC
    | M 5.2 |
    33 km (20.5 mi) depth
    |
    42 km (26 mi) distance
    | USGS | Details
  • 16 Sep 1984 22:26 UTC
    | M 5.5 |
    33 km (20.5 mi) depth
    |
    72 km (45 mi) distance
    | USGS | Details
  • 31 May 1984 08:31 UTC
    | M 5.3 |
    188.7 km (117.3 mi) depth
    |
    160 km (99 mi) distance
    | USGS | Details
  • 25 Apr 1984 14:02 UTC
    | M 5.2 |
    33 km (20.5 mi) depth
    |
    112 km (70 mi) distance
    | USGS | Details
  • 14 Feb 1984 00:09 UTC
    | M 5.0 |
    66.8 km (41.5 mi) depth
    |
    57 km (35 mi) distance
    | USGS | Details
  • 26 Jan 1984 04:12 UTC
    | M 5.0 |
    196.7 km (122.2 mi) depth
    |
    105 km (65 mi) distance
    | USGS | Details
  • 13 Sep 1983 19:30 UTC
    | M 5.5 |
    33 km (20.5 mi) depth
    |
    21 km (13 mi) distance
    | USGS | Details
  • 21 Aug 1983 22:57 UTC
    | M 5.5 |
    150.5 km (93.5 mi) depth
    |
    146 km (91 mi) distance
    | USGS | Details
  • 10 Aug 1983 20:05 UTC
    | M 5.5 |
    33 km (20.5 mi) depth
    |
    40 km (25 mi) distance
    | USGS | Details
  • 05 Jul 1983 09:57 UTC
    | M 5.5 |
    33 km (20.5 mi) depth
    |
    102 km (63 mi) distance
    | USGS | Details
  • 28 Jun 1983 17:47 UTC
    | M 5.0 |
    33 km (20.5 mi) depth
    |
    76 km (47 mi) distance
    | USGS | Details
  • 10 Jun 1983 22:39 UTC
    | M 5.7 |
    46.7 km (29 mi) depth
    |
    48 km (30 mi) distance
    | USGS | Details
  • 24 Apr 1983 03:29 UTC
    | M 5.6 |
    29 km (18 mi) depth
    |
    20 km (12 mi) distance
    | USGS | Details
  • 02 Apr 1983 06:49 UTC
    | M 5.4 |
    38 km (23.6 mi) depth
    |
    64 km (40 mi) distance
    | USGS | Details
  • Show all

Map of aftershocks

Earlier earthquakes in the same area

Major mag. 7.2 earthquake - South of Tonga on Sunday, 19 December 1982
 

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