Strong mag. 6.3 earthquake - Kermadec Islands Region on Friday, 21 March 1997 at 12:07 (GMT)

Strong mag. 6.3 earthquake  - Kermadec Islands Region on Friday, 21 March 1997 at 12:07 (GMT)

Strong magnitude 6.3 earthquake at 449 km depth

Date & time: 21 Mar 1997 12:07:17 UTC###AGESTRINGCOPY###
Magnitude: 6.3
Depth: 448.7 km
Epicenter latitude / longitude: 31.163°S / 179.624°E (international territory)
Nearest volcano: Havre Seamount (127 km / 79 mi)
Nearby towns and cities:
707 km (439 mi) NE of Whangarei (New Zealand) (pop: 50,900)
771 km (479 mi) NE of North Shore (New Zealand) (pop: 207,900)
782 km (486 mi) NE of Manukau (New Zealand) (pop: 362,000)
792 km (492 mi) NNE of Tauranga (New Zealand) (pop: 110,300)
797 km (495 mi) NNE of Pukekohe East (New Zealand) (pop: 21,400)
835 km (519 mi) NNE of Rotorua (New Zealand) (pop: 65,900)
837 km (520 mi) NNE of Hamilton (New Zealand) (pop: 152,600)
846 km (526 mi) N of Gisborne (New Zealand) (pop: 34,300)
Primary data source: USGS
Estimated released energy: 1.8 x 1014 joules (49.4 gigawatt hours, equivalent to 42502 tons of TNT or 2.7 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 6.3449 kmKermadec Islands regionUSGS
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 6.3 quake Kermadec Islands Region 21 March 12:07 UTC

More info
Recorded aftershocks, latest first (3 quakes):
  • 01 Aug 1997 07:20 UTC
    | M 4.8 |
    550 km (341.8 mi) depth
    |
    84 km (52 mi) distance
    | USGS | Details
  • 28 Apr 1997 22:34 UTC
    | M 4.4 |
    400 km (248.5 mi) depth
    |
    47 km (29 mi) distance
    | USGS | Details
  • 25 Apr 1997 12:22 UTC
    | M 3.8 |
    400 km (248.5 mi) depth
    |
    34 km (21 mi) distance
    | USGS | Details

Earlier earthquakes in the same area

Strong mag. 6.3 earthquake - Kermadec Islands Region on Friday, 21 March 1997 at 12:07 (GMT)
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