Strong mag. 6.6 earthquake - Vanuatu on Sunday, 22 August 1999 at 12:40 (GMT)

Strong mag. 6.6 earthquake - Vanuatu on Sunday, 22 August 1999 at 12:40 (GMT)

Strong magnitude 6.6 earthquake at 33 km depth

Date & time: 22 Aug 1999 12:40:45 UTC
Magnitude: 6.6
Depth: 33.0 km
Epicenter latitude / longitude: 16.117°S / 168.039°E (Vanuatu)
Nearest volcano: Ambrym (17 km / 11 mi)
Nearby towns and cities:
67 km (41 mi) E of Lakatoro (pop: 705) --> See nearby quakes!
69 km (43 mi) E of Norsup (pop: 3,000) --> See nearby quakes!
115 km (71 mi) SE of Luganville (pop: 13,400) --> See nearby quakes!
158 km (98 mi) SE of Port-Olry (pop: 1,950) --> See nearby quakes!
182 km (113 mi) N of Port Vila (pop: 35,900) --> See nearby quakes!
255 km (158 mi) SSE of Sola (pop: 1,170) --> See nearby quakes!
403 km (250 mi) NNW of Isangel (pop: 1,440) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 5 x 1014 joules (139 gigawatt hours, equivalent to 1.2 x 105 tons of TNT or 7.5 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 6.633 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 6.6 quake Vanuatu 22 August 1999 12:40 GMT

More info
Recorded aftershocks, latest first (8 quakes):
  • 13 Feb 2000 00:59 UTC
    | M 5.4 |
    34 km (21.1 mi) depth
    |
    53 km (33 mi) distance
    | USGS | Details
  • 23 Dec 1999 19:54 UTC
    | M 5.0 |
    33 km (20.5 mi) depth
    |
    5 km (3 mi) distance
    | USGS | Details
  • 26 Nov 1999 22:03 UTC
    | M 5.9 |
    33 km (20.5 mi) depth
    |
    62 km (38 mi) distance
    | USGS | Details
  • 26 Nov 1999 19:36 UTC
    | M 5.5 |
    33 km (20.5 mi) depth
    |
    34 km (21 mi) distance
    | USGS | Details
  • 26 Nov 1999 14:41 UTC
    | M 5.3 |
    33 km (20.5 mi) depth
    |
    40 km (25 mi) distance
    | USGS | Details
  • 26 Nov 1999 13:46 UTC
    | M 5.3 |
    33 km (20.5 mi) depth
    |
    15 km (9 mi) distance
    | USGS | Details
  • 26 Nov 1999 13:38 UTC
    | M 5.7 |
    33 km (20.5 mi) depth
    |
    13 km (8 mi) distance
    | USGS | Details
  • 26 Nov 1999 13:21 UTC
    | M 7.5 |
    33 km (20.5 mi) depth
    |
    39 km (24 mi) distance
    | USGS | Major magnitude. 7.5 earthquake - Vanuatu on Friday, 26 November 1999 at 13:21 (GMT)

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Earlier earthquakes in the same area

Strong mag. 6.6 earthquake - Vanuatu on Sunday, 22 August 1999 at 12:40 (GMT)
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