Very strong mag. 6.4 earthquake - South Pacific Ocean, 32 km southwest of Sunday Island, New Zealand, on Tuesday, 20 September 1949 at 11:55 (GMT)

Very strong mag. 6.4 earthquake - South Pacific Ocean, 32 km southwest of Sunday Island, New Zealand, on Tuesday, 20 September 1949 at 11:55 (GMT)

Very strong magnitude 6.4 earthquake at 35 km depth

Date & time: 20 Sep 1949 11:55:25 UTC
Magnitude: 6.4
Depth: 35.0 km
Epicenter latitude / longitude: 29.472°S / 178.167°W (South Pacific Ocean, New Zealand)
Nearest volcano: Raoul Island (33 km / 21 mi)
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.5 x 1014 joules (69.8 gigawatt hours, equivalent to 60036 tons of TNT or 3.8 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 6.435 kmKermadec Islands, 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.
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Aftershocks

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Recorded aftershocks, latest first (0 quakes):
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Earlier earthquakes in the same area since 1900


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