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Moderate mag. 4.6 earthquake - South Pacific Ocean, 151 km southeast of Noumea, New Caledonia, on Saturday, Mar 18, 2023 at 10:43 am (GMT +11) -

Moderate magnitude 4.6 earthquake at 10 km depth

18 Mar 00:01 UTC: First to report: GFZ after 18 minutes.
18 Mar 00:10: Now using data updates from USGS

Earthquake details

Date & time	Mar 17, 2023 23:43:20 UTC -
Local time at epicenter	Saturday, Mar 18, 2023 at 10:43 am (GMT +11)
Status	Confirmed
Magnitude	4.6
Depth	10.0 km
Epicenter latitude / longitude	22.953°S / 167.719°E (South Pacific Ocean, New Caledonia)
Antipode	22.953°N / 12.281°W
Shaking intensity	Moderate shaking near epicenter
Felt	0 reports
Primary data source	USGS (United States Geological Survey)
Nearest volcano	###NEARESTVOLCANO2###
Nearby towns and cities	141 km (88 mi) ESE of Mont-Dore (pop: 24,700) \| Show on map \| Quakes nearby 151 km (94 mi) ESE of Noumea (pop: 93,100) \| Show on map \| Quakes nearby 157 km (98 mi) SE of Dumbéa (pop: 19,300) \| Show on map \| Quakes nearby 157 km (98 mi) S of Tadine (Maré) (pop: 7,490) \| Show on map \| Quakes nearby 167 km (104 mi) ESE of Paita (pop: 12,600) \| Show on map \| Quakes nearby 231 km (144 mi) SSE of Wé (Lifou) (pop: 10,400) \| Show on map \| Quakes nearby 239 km (148 mi) SE of La Foa (pop: 2,950) \| Show on map \| Quakes nearby 276 km (171 mi) SE of Bourail (pop: 4,830) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Broken Clouds 26°C (79 F), humidity: 86%, wind: 8 m/s (15 kts) from E
Estimated seismic energy released	5 x 10¹¹ joules (139 megawatt hours, equivalent to 120 tons of TNT) \| 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
4.6	10 km	39 Km SE of Vao, New Caledonia	USGS
4.6	10 km	New Caledonia	RaspberryShake
4.8	10 km	New Caledonia	GFZ
4.6	5 km	NEW CALEDONIA	EMSC
4.6	10 km	New Caledonia	IRIS

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

Seismograms

Seismic station: Norfolk Island (NFK/AU network) | Distance from quake: 678 km / 421 mi | Show on map | Station Info

Seismic station Norfolk Island: 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: 0.2-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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.

Earlier earthquakes in the same area

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