Strong mag. 6.9 earthquake - Vanuatu on Wednesday, 20 November 1974 at 04:14 (GMT)

Strong mag. 6.9 earthquake - Vanuatu on Wednesday, 20 November 1974 at 04:14 (GMT)

Strong magnitude 6.9 earthquake at 33 km depth

Date & time: 20 Nov 1974 04:14:46 UTC
Magnitude: 6.9
Depth: 33.0 km
Epicenter latitude / longitude: 15.023°S / 167.139°E (Vanuatu)
Nearest volcano: Aoba (85 km / 53 mi)
Nearby towns and cities:
7 km (5 mi) ENE of Port-Olry (pop: 1,950) --> See nearby quakes!
55 km (34 mi) N of Luganville (pop: 13,400) --> See nearby quakes!
119 km (74 mi) NNW of Norsup (pop: 3,000) --> See nearby quakes!
135 km (84 mi) SSW of Sola (pop: 1,170) --> See nearby quakes!
327 km (203 mi) NNW of Port Vila (pop: 35,900) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.4 x 1015 joules (392 gigawatt hours, equivalent to 3.4 x 105 tons of TNT or 21.1 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 6.933 kmVanuatuUSGS
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 6.9 quake Vanuatu 20 November 1974 04:14 GMT

More info
Recorded aftershocks, latest first (13 quakes):
  • 30 Apr 1975 18:11 UTC
    | M 5.1 |
    17 km (10.6 mi) depth
    |
    43 km (27 mi) distance
    | USGS | Details
  • 14 Apr 1975 14:20 UTC
    | M 4.2 |
    201 km (124.9 mi) depth
    |
    170 km (106 mi) distance
    | USGS | Details
  • 12 Apr 1975 16:53 UTC
    | M 4.9 |
    21 km (13 mi) depth
    |
    158 km (98 mi) distance
    | USGS | Details
  • 11 Apr 1975 04:34 UTC
    | M 4.6 |
    23 km (14.3 mi) depth
    |
    160 km (99 mi) distance
    | USGS | Details
  • 21 Jan 1975 21:13 UTC
    | M 4.8 |
    121 km (75.2 mi) depth
    |
    44 km (27 mi) distance
    | USGS | Details
  • 11 Jan 1975 22:34 UTC
    | M 5.0 |
    152 km (94.4 mi) depth
    |
    91 km (56 mi) distance
    | USGS | Details
  • 10 Jan 1975 19:22 UTC
    | M 5.2 |
    17 km (10.6 mi) depth
    |
    115 km (71 mi) distance
    | USGS | Details
  • 08 Jan 1975 13:33 UTC
    | M 5.2 |
    116 km (72.1 mi) depth
    |
    75 km (46 mi) distance
    | USGS | Details
  • 30 Dec 1974 06:14 UTC
    | M 4.2 |
    117 km (72.7 mi) depth
    |
    44 km (27 mi) distance
    | USGS | Details
  • 25 Dec 1974 02:17 UTC
    | M 5.0 |
    179 km (111.2 mi) depth
    |
    81 km (50 mi) distance
    | USGS | Details
  • 15 Dec 1974 15:32 UTC
    | M 4.7 |
    33 km (20.5 mi) depth
    |
    122 km (76 mi) distance
    | USGS | Details
  • 12 Dec 1974 14:13 UTC
    | M 4.3 |
    38 km (23.6 mi) depth
    |
    124 km (77 mi) distance
    | USGS | Details
  • 28 Nov 1974 00:23 UTC
    | M 5.8 |
    61 km (37.9 mi) depth
    |
    31 km (19 mi) distance
    | USGS | Details

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Earlier earthquakes in the same area

Strong mag. 6.9 earthquake - Vanuatu on Wednesday, 20 November 1974 at 04:14 (GMT)
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