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Strong mag. 5.4 earthquake - South Pacific Ocean, New Zealand, on Tuesday, Feb 23, 2021 at 12:49 pm (GMT +13) -

Strong mag. 5.4 earthquake - South Pacific Ocean, New Zealand, on Tuesday, Feb 23, 2021 at 12:49 pm (GMT +13)

Strong magnitude 5.4 earthquake at 33 km depth

22 Feb 23:54 UTC: First to report: GEONET (NZ) after 5 minutes.
23 Feb 00:05: Magnitude recalculated from 5.5 to 5.4. Hypocenter depth recalculated from 0.0 to 33.0 km (from 0 to 21 mi). Epicenter location corrected by 37 km (23 mi) towards WNW.
Date & time: Feb 22, 2021 23:49:19 UTC -
Local time at epicenter: Tuesday, Feb 23, 2021 at 12:49 pm (GMT +13)
Magnitude: 5.4
Depth: 33.0 km
Epicenter latitude / longitude: 31.47049°S / 177.92244°W (South Pacific Ocean, New Zealand)
Antipode: 31.47°N / 2.078°E
Nearest volcano: Havre Seamount (151 km / 94 mi)
Weather at epicenter at time of quake:
Scattered Clouds 21.4°C (70 F), humidity: 71%, wind: 10 m/s (20 kts) from E
Primary data source: GEONET (NZ) (Earthquake Commission and Geological Survey, New Zealand)
Estimated released energy: 7.9 x 1012 joules (2.21 gigawatt hours, equivalent to 1898 tons of TNT or 0.1 atomic bombs!) | about seismic energy
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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.
Mag.DepthLocationSource
5.433 kmNew ZealandGEONET (NZ)
5.369 kmKermadec Islands Region, New ZealandGFZ
5.433 kmKERMADEC ISLANDS REGION, New ZealandEMSC
5.264 kmKermadec Islands Region, New ZealandGeoAu
5.152 kmKermadec Islands Region, New ZealandUSGS
5.391 kmKermadec Islands Region, New ZealandBMKG

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.
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Aftershocks

[More info]

Recorded aftershocks, latest first (1 quake)

Date and timeMag
Depth		LocationDetails
Feb 28, 2021 16:53
1 year 11 weeks ago
4.7

12 km		South Pacific Ocean, New ZealandMore

Earlier earthquakes in the same area

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