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Major mag. 7.2 earthquake - Fiji Region (Tonga) on Thursday, 30 October 1986

Major mag. 7.2 earthquake  - Fiji Region (Tonga) on Thursday, 30 October 1986
Date & time: Thursday, 30 October 1986 01:28 UTC
Magnitude: 7.2
Depth: 188.1 km
Epicenter latitude / longitude: 21.702°S / 176.616°W (Tonga)
Nearest volcano: Ata Volcanic Complex (82 km / 51 mi)
Nearby towns and cities:
158 km SW de Haveluloto (pop: 3,400)
159 km SW de Nuku‘alofa (pop: 22,400)
159 km SW de Vaini (pop: 3,000)
161 km SW de Malapo (pop: 500)
165 km SW de Tatakamotonga (pop: 3,000)
166 km SW de Lapaha (pop: 8,000)
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!
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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.
HeureMag. / DepthLocationSource
Thu, 30 Oct 01:28 UTCM 7.2 / 188.1 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!

Aftershocks of the 7.2 quake: Fiji Region (Tonga), 30 Oct 1986 01:28

More info
Recorded aftershocks, latest first (16 quakes):
  • 05 Sep 1988 09:14 UTC
    | M 5.3 |
    146.2 km (90.8 mi) depth
    |
    74 km (46 mi) distance
    | USGS | Details
  • 24 Jul 1988 00:29 UTC
    | M 5.0 |
    223.8 km (139.1 mi) depth
    |
    91 km (56 mi) distance
    | USGS | Details
  • 05 Jun 1988 01:41 UTC
    | M 5.2 |
    439.3 km (273 mi) depth
    |
    167 km (104 mi) distance
    | USGS | Details
  • 11 May 1988 19:56 UTC
    | M 5.1 |
    146 km (90.7 mi) depth
    |
    112 km (70 mi) distance
    | USGS | Details
  • 15 Jan 1988 08:40 UTC
    | M 6.4 |
    213.7 km (132.8 mi) depth
    |
    120 km (75 mi) distance
    | USGS | Strong mag. 6.4 earthquake - Tonga on Friday, 15 January 1988
  • 09 Jan 1988 21:25 UTC
    | M 5.0 |
    180.6 km (112.2 mi) depth
    |
    85 km (53 mi) distance
    | USGS | Details
  • 01 Dec 1987 18:23 UTC
    | M 5.3 |
    388.4 km (241.3 mi) depth
    |
    157 km (98 mi) distance
    | USGS | Details
  • 29 Jul 1987 21:53 UTC
    | M 5.1 |
    100 km (62.1 mi) depth
    |
    152 km (94 mi) distance
    | USGS | Details
  • 17 Jul 1987 13:42 UTC
    | M 5.1 |
    33 km (20.5 mi) depth
    |
    91 km (56 mi) distance
    | USGS | Details
  • 11 Jul 1987 17:45 UTC
    | M 5.2 |
    33 km (20.5 mi) depth
    |
    64 km (40 mi) distance
    | USGS | Details
  • 10 Jul 1987 18:32 UTC
    | M 5.0 |
    224.2 km (139.3 mi) depth
    |
    161 km (100 mi) distance
    | USGS | Details
  • 16 Jun 1987 20:17 UTC
    | M 5.6 |
    146.1 km (90.8 mi) depth
    |
    137 km (85 mi) distance
    | USGS | Details
  • 19 Mar 1987 22:51 UTC
    | M 6.6 |
    213.5 km (132.7 mi) depth
    |
    154 km (95 mi) distance
    | USGS | Strong mag. 6.6 earthquake - Fiji Region (Tonga) on Thursday, 19 March 1987
  • 13 Mar 1987 19:09 UTC
    | M 5.0 |
    275.3 km (171.1 mi) depth
    |
    119 km (74 mi) distance
    | USGS | Details
  • 01 Mar 1987 21:37 UTC
    | M 5.1 |
    412.2 km (256.1 mi) depth
    |
    145 km (90 mi) distance
    | USGS | Details
  • 03 Feb 1987 19:26 UTC
    | M 5.0 |
    119.2 km (74.1 mi) depth
    |
    121 km (75 mi) distance
    | USGS | Details

Earlier earthquakes in the same area

Major mag. 7.2 earthquake - Fiji Region (Tonga) on Thursday, 30 October 1986

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