Strong mag. 6.1 earthquake - Kermadec Islands Region (New Zealand) on Saturday, 20 December 1986 at 08:21 (GMT)

Strong mag. 6.1 earthquake  - Kermadec Islands Region (New Zealand) on Saturday, 20 December 1986 at 08:21 (GMT)

Strong magnitude 6.1 earthquake at 44 km depth

Date & time: 20 Dec 1986 08:21:23 UTC###AGESTRINGCOPY###
Magnitude: 6.1
Profondeur: 44.3 km
Epicenter latitude / longitude: 28.182°S / 176.859°W (Nouvelle-Zélande)
Volcan le plus près: Volcano OP (82 km / 51 mi)
Primary data source: USGS
Estimated released energy: 8.9 x 1013 joules (24.8 gigawatt hours, equivalent to 21301 tons of TNT or 1.3 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.
MagnitudeProfondeurLocationSource
M 6.144 kmKermadec Islands region (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 6.1 quake Kermadec Islands Region (New Zealand) 20 December 08:21 UTC

More info
Recorded aftershocks, latest first (17 quakes):
  • 12 May 1987 04:17 UTC
    | M 4.5 |
    193 km (119.9 mi) depth
    |
    44 km (28 mi) distance
    | USGS | Details
  • 05 May 1987 00:31 UTC
    | M 5.0 |
    33 km (20.5 mi) depth
    |
    50 km (31 mi) distance
    | USGS | Details
  • 04 May 1987 17:37 UTC
    | M 5.3 |
    80.1 km (49.8 mi) depth
    |
    47 km (29 mi) distance
    | USGS | Details
  • 03 May 1987 11:02 UTC
    | M 4.8 |
    62 km (38.5 mi) depth
    |
    56 km (35 mi) distance
    | USGS | Details
  • 08 Apr 1987 07:26 UTC
    | M 4.6 |
    33 km (20.5 mi) depth
    |
    23 km (14 mi) distance
    | USGS | Details
  • 25 Feb 1987 02:01 UTC
    | M 5.2 |
    71.7 km (44.6 mi) depth
    |
    37 km (23 mi) distance
    | USGS | Details
  • 19 Feb 1987 09:32 UTC
    | M 5.0 |
    10 km (6.2 mi) depth
    |
    67 km (42 mi) distance
    | USGS | Details
  • 12 Feb 1987 05:01 UTC
    | M 4.4 |
    113.6 km (70.6 mi) depth
    |
    53 km (33 mi) distance
    | USGS | Details
  • 10 Feb 1987 02:09 UTC
    | M 5.0 |
    46.7 km (29 mi) depth
    |
    29 km (18 mi) distance
    | USGS | Details
  • 31 Jan 1987 10:30 UTC
    | M 4.7 |
    33 km (20.5 mi) depth
    |
    39 km (24 mi) distance
    | USGS | Details
  • 25 Jan 1987 14:13 UTC
    | M 4.6 |
    33 km (20.5 mi) depth
    |
    55 km (34 mi) distance
    | USGS | Details
  • 08 Jan 1987 23:50 UTC
    | M 4.3 |
    33 km (20.5 mi) depth
    |
    62 km (39 mi) distance
    | USGS | Details
  • 22 Dec 1986 00:21 UTC
    | M 4.7 |
    33 km (20.5 mi) depth
    |
    30 km (19 mi) distance
    | USGS | Details
  • 21 Dec 1986 20:23 UTC
    | M 4.7 |
    33 km (20.5 mi) depth
    |
    49 km (30 mi) distance
    | USGS | Details
  • 21 Dec 1986 12:58 UTC
    | M 4.3 |
    33 km (20.5 mi) depth
    |
    18 km (11 mi) distance
    | USGS | Details
  • 21 Dec 1986 01:10 UTC
    | M 6.5 |
    17.1 km (10.6 mi) depth
    |
    15 km (9 mi) distance
    | USGS | Strong mag. 6.5 earthquake - Kermadec Islands Region (New Zealand) on Sunday, 21 December 1986 at 01:10 (GMT)
  • 20 Dec 1986 21:27 UTC
    | M 5.5 |
    33.2 km (20.6 mi) depth
    |
    23 km (14 mi) distance
    | USGS | Details

Earlier earthquakes in the same area

Strong mag. 6.1 earthquake - Kermadec Islands Region (New Zealand) on Saturday, 20 December 1986 at 08:21 (GMT)
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