Strong mag. 6.0 earthquake - Tonga on Thursday, 30 March 1989 at 20:39 (GMT)

Strong mag. 6.0 earthquake  - Tonga on Thursday, 30 March 1989 at 20:39 (GMT)

Strong magnitude 6.0 earthquake at 230 km depth

Date & time: 30 Mar 1989 08:39:29 UTC###AGESTRINGCOPY###
Magnitude: 6.0
Depth: 230.0 km
Epicenter latitude / longitude: 19.589°S / 175.848°W (Tonga)
Nearest volcano: Tofua (83 km / 52 mi)
Nearby towns and cities:
158 km (98 mi) W of Pangai (Ha'apai) (pop: 1,740)
185 km (115 mi) NNW of Nuku‘alofa (Nuku'alofa, Tongatapu) (pop: 22,400)
190 km (118 mi) NNW of Kolonga (Tongatapu) (pop: 1,100)
215 km (134 mi) NNW of ‘Ohonua (Ohonua, 'Eua) (pop: 1,240)
222 km (138 mi) WSW of Neiafu (Vava‘u) (pop: 4,320)
459 km (285 mi) SSW of Hihifo (pop: 815)
622 km (387 mi) ESE of Suva (Central, Fiji) (pop: 77,400)
740 km (460 mi) ESE of Lautoka (Western, Fiji) (pop: 52,500)
Primary data source: USGS
Estimated released energy: 6.3 x 1013 joules (17.5 gigawatt hours, equivalent to 15080 tons of TNT or 0.9 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 6.0230 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 6.0 quake Tonga 30 March 20:39 UTC

More info
Recorded aftershocks, latest first (5 quakes):
  • 16 Sep 1989 04:52 UTC
    | M 4.7 |
    253.7 km (157.6 mi) depth
    |
    55 km (34 mi) distance
    | USGS | Details
  • 15 Sep 1989 08:49 UTC
    | M 5.5 |
    144.8 km (90 mi) depth
    |
    29 km (18 mi) distance
    | USGS | Details
  • 14 Aug 1989 17:22 UTC
    | M 5.0 |
    33 km (20.5 mi) depth
    |
    34 km (21 mi) distance
    | USGS | Details
  • 30 May 1989 11:28 UTC
    | M 5.0 |
    216.7 km (134.7 mi) depth
    |
    49 km (31 mi) distance
    | USGS | Details
  • 02 Apr 1989 01:10 UTC
    | M 5.1 |
    231.7 km (144 mi) depth
    |
    44 km (27 mi) distance
    | USGS | Details

Earlier earthquakes in the same area

Strong mag. 6.0 earthquake - Tonga on Thursday, 30 March 1989 at 20:39 (GMT)
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