Major magnitude. 7.2 earthquake - South Island of New Zealand on Thursday, 21 August 2003 at 12:12 (GMT)

Major magnitude. 7.2 earthquake  - South Island of New Zealand on Thursday, 21 August 2003 at 12:12 (GMT)

Major magnitude 7.2 earthquake at 28 km depth

Date & time: 21 Aug 2003 12:12:49 UTC###AGESTRINGCOPY###
Magnitude: 7.2
Depth: 28.0 km
Epicenter latitude / longitude: 45.104°S / 167.144°E (New Zealand)
Nearest volcano: Hautere (162 km / 101 mi)
Nearby towns and cities:
57 km (35 mi) NW of Te Anau (Southland District) (pop: 2,070)
63 km (39 mi) NW of Manapouri (Southland District) (pop: 248)
78 km (48 mi) SW of Milford Sound (Southland District) (pop: 435)
120 km (74 mi) W of Queenstown (Otago) (pop: 10,400)
172 km (107 mi) NW of Invercargill (Southland) (pop: 47,300)
276 km (171 mi) WNW of Dunedin (Otago) (pop: 114,300)
470 km (292 mi) WSW of Christchurch (Canterbury) (pop: 363,900)
750 km (466 mi) SW of Wellington (pop: 381,900)
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]
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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 7.228 kmSouth Island of New ZealandUSGS
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 7.2 quake South Island of New Zealand 21 August 12:12 UTC

More info
Recorded aftershocks, latest first (19 quakes):
  • 14 Mar 2005 08:04 UTC
    | M 5.2 |
    10 km (6.2 mi) depth
    |
    31 km (19 mi) distance
    | USGS | Details
  • 02 Jan 2004 03:49 UTC
    | M 5.1 |
    22 km (13.7 mi) depth
    |
    24 km (15 mi) distance
    | USGS | Details
  • 22 Dec 2003 22:13 UTC
    | M 5.0 |
    24 km (14.9 mi) depth
    |
    34 km (21 mi) distance
    | USGS | Details
  • 02 Nov 2003 13:58 UTC
    | M 5.2 |
    10 km (6.2 mi) depth
    |
    42 km (26 mi) distance
    | USGS | Details
  • 02 Nov 2003 05:32 UTC
    | M 6.4 |
    10 km (6.2 mi) depth
    |
    49 km (30 mi) distance
    | USGS | Strong mag. 6.4 earthquake - Off the West Coast of the South Island of New Zealand on Sunday, 2 November 2003 at 05:32 (GMT)
  • 30 Sep 2003 19:37 UTC
    | M 5.6 |
    10 km (6.2 mi) depth
    |
    43 km (27 mi) distance
    | USGS | Details
  • 11 Sep 2003 17:56 UTC
    | M 5.0 |
    25 km (15.5 mi) depth
    |
    44 km (27 mi) distance
    | USGS | Details
  • 04 Sep 2003 08:40 UTC
    | M 5.5 |
    33 km (20.5 mi) depth
    |
    10 km (6 mi) distance
    | USGS | Details
  • 26 Aug 2003 23:56 UTC
    | M 5.5 |
    43.5 km (27 mi) depth
    |
    45 km (28 mi) distance
    | USGS | Details
  • 23 Aug 2003 09:13 UTC
    | M 5.1 |
    33 km (20.5 mi) depth
    |
    24 km (15 mi) distance
    | USGS | Details
  • 22 Aug 2003 15:29 UTC
    | M 5.1 |
    24 km (14.9 mi) depth
    |
    21 km (13 mi) distance
    | USGS | Details
  • 21 Aug 2003 19:56 UTC
    | M 5.0 |
    33 km (20.5 mi) depth
    |
    22 km (14 mi) distance
    | USGS | Details
  • 21 Aug 2003 17:55 UTC
    | M 5.1 |
    23 km (14.3 mi) depth
    |
    41 km (26 mi) distance
    | USGS | Details
  • 21 Aug 2003 14:46 UTC
    | M 5.0 |
    25 km (15.5 mi) depth
    |
    10 km (6 mi) distance
    | USGS | Details
  • 21 Aug 2003 14:12 UTC
    | M 5.9 |
    33 km (20.5 mi) depth
    |
    26 km (16 mi) distance
    | USGS | Details
  • 21 Aug 2003 13:03 UTC
    | M 5.1 |
    26 km (16.2 mi) depth
    |
    34 km (21 mi) distance
    | USGS | Details
  • 21 Aug 2003 12:45 UTC
    | M 5.7 |
    33 km (20.5 mi) depth
    |
    2 km (1 mi) distance
    | USGS | Details
  • 21 Aug 2003 12:41 UTC
    | M 5.3 |
    23 km (14.3 mi) depth
    |
    24 km (15 mi) distance
    | USGS | Details
  • 21 Aug 2003 12:29 UTC
    | M 5.1 |
    12 km (7.5 mi) depth
    |
    35 km (22 mi) distance
    | USGS | Details

Earlier earthquakes in the same area since 1900

Major magnitude. 7.2 earthquake - South Island of New Zealand on Thursday, 21 August 2003 at 12:12 (GMT)

Map of earlier quakes

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