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Strong mag. 6.2 earthquake - South Pacific Ocean, New Zealand, on Saturday, Mar 4, 2023 at 7:41 pm (GMT +13) -

Strong magnitude 6.2 earthquake at 214 km depth

4 Mar 06:50 UTC: First to report: GEONET (NZ) after 9 minutes.

Earthquake details

Date & time	Mar 4, 2023 06:41:21 UTC -
Local time at epicenter	Saturday, Mar 4, 2023 at 7:41 pm (GMT +13)
Status	Confirmed
Magnitude	6.2
Depth	214.2 km
Epicenter latitude / longitude	30.04052°S / 178.41177°W (South Pacific Ocean, New Zealand)
Antipode	30.041°N / 1.588°E
Shaking intensity	Weak shaking
Felt	3 reports
Primary data source	GEONET (NZ) (Earthquake Commission and Geological Survey, New Zealand)
Nearest volcano	Macauley (19 km / 12 mi)
Nearby towns and cities
Weather at epicenter at time of quake	Overcast Clouds 22.3°C (72 F), humidity: 72%, wind: 6 m/s (12 kts) from SE
Estimated seismic energy released	1.3 x 10¹⁴ joules (35 gigawatt hours, equivalent to 30089 tons of TNT or 1.9 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.	Depth	Location	Source
6.2	214 km	New Zealand	GEONET (NZ)
6.8	205 km	Kermadec Islands, New Zealand	GFZ
6.8	134 km	Kermadec Islands, New Zealand	GeoAu
6.9	206 km	Kermadec Islands, New Zealand	RaspberryShake
6.9	206 km	Kermadec Islands, New Zealand	USGS
6.9	150 km	KERMADEC ISLANDS, NEW ZEALAND	EMSC
6.9	10 km	Kermadec Islands, New Zealand	IRIS
6.5	181 km	New Zealand: Near Auckland	RENASS
6.7	229 km	Kermadec Islands, New Zealand [Sea: New Zealand]	INGV

Most recent quakes Top 20 past 24 hrs Quakes in New Zealand

Seismograms

Seismic station: Tucson, Arizona (TUC/IU network) | Distance from quake: 9938 km / 6175 mi | Show on map | Station Info

Seismic station Tucson, Arizona: vertical movement plot around time of quake (source: IRIS/BUD)

Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.02-2.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

User reports for this quake (5)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.

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Torbay, Auckland / Very weak shaking (MMI II) / complex motion difficult to describe / 2-5 s : yes, at that time stood on Long Bay beach. There was a feeling that a truck had passed by, but there were no roads nearby. Pohutukawa the trees didn't even move | 29 users found this interesting. (reported through our app)

porangahau, new zealand (1227.1 km SSW of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s : sitting on the chair reading | 7 users found this interesting.

Opotiki new Zealand / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Made the house creak and and glasses in the cupboard rattle | 3 users found this interesting.

Arapuni / not felt (reported through our app)

Auckand / not felt

Aftershocks

[More info]

Recorded aftershocks, latest first (1 quake)

Date and time	Mag Depth	Location	Details
Mar 14, 2023 23:45 11 days ago	4.7 248 km	South Pacific Ocean, New Zealand	More

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