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Strong mag. 5.9 earthquake - South Pacific Ocean, 1352 km northeast of Wellington, New Zealand, on Tuesday, 28 May 1968 at 09:06 (GMT)
Tremblement de terre fort magnitude 5.9 at 30 km depth
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Date & time: 28 May 1968 09:06:31 UTC
Magnitude: 5.9Profondeur: 30.0 km
Epicenter latitude / longitude: 30.786°S / 177.63°W
(
South Pacific Ocean,
Nouvelle-Zélande)
Volcan le plus près:
Curtis Island (93 km / 58 mi)
Primary data source:
USGS (United States Geological Survey)
Estimated released energy: 4.5 x 10
13 joules (12.4 gigawatt hours, equivalent to 10676 tons of TNT or 0.7 atomic bombs!)
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Data for the same earthquake reported by different agencies
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| Magnitude | Profondeur | Location | Source |
| M 5.9 | 30 km | Kermadec Islands, New Zealand | USGS |
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Aftershocks
More info
Based on its magnitude, the fault that was active during the quake ruptured along a surface of approx. 79 km
2 (=31 sqare miles) as a first-order estimate. The length of the rupture zone thus was probably around 15 km (10 mi).
Aftershocks typically occur during the days and weeks following the quake at or near the same fault, at distances of up to approx. two times the length of the rupture zone.
The often broadly linear arrangement of aftershock epicenters encompasses the rupture zone of the main shock (check on the
map below to verify).
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