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Very strong mag. 6.3 earthquake - Coral Sea, 95 km south of Santo, Luganville, Sanma Province, Vanuatu, on Sunday, Apr 10, 2022 at 7:52 am (GMT +11) -

Very strong magnitude 6.3 earthquake at 10 km depth

9 Apr 20:59 UTC: First to report: VolcanoDiscovery after 7 minutes.
9 Apr 21:00: Now using data updates from GFZ
... [show all] ...
9 Apr 21:31: Magnitude recalculated from 6.2 to 6.3.

Update Sat, 9 Apr 2022, 21:06

Magnitude 6.1 earthquake strikes near Santo, Luganville, Sanma Province, Vanuatu

6.1 quake 10 Apr 7:52 am (GMT +11)

An earthquake of magnitude 6.1 occurred in the morning on Sunday, April 10th, 2022, at 7:52 am local time near Santo, Luganville, Sanma Province, Vanuatu, as reported by the German Research Centre for Geosciences (GFZ).
According to preliminary data, the quake was located at a shallow depth of 10 km. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the citizen-seismograph network of RaspberryShake, which listed it as a magnitude 6.1 earthquake as well. Other agencies reporting the same quake include the European-Mediterranean Seismological Centre (EMSC) at magnitude 6.3, and France's Réseau National de Surveillance Sismique (RéNaSS) at magnitude 5.7.
Generally quakes of this magnitude are recorded by more than one agency and the results can vary, with subsequent reports that come in after the first one often showing more accuracy.
Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc.
In Norsup (pop. 3,000) located 76 km from the epicenter, Santo (pop. 13,400) 91 km away, and Port-Olry (pop. 2,000) 136 km away, the quake should have been felt as light shaking.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.

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Earthquake details

Date & time	Apr 9, 2022 20:52:37 UTC -
Local time at epicenter	Sunday, Apr 10, 2022 at 7:52 am (GMT +11)
Status	Confirmed
Magnitude	6.3
Depth	10.0 km
Epicenter latitude / longitude	16.3181°S / 166.8507°E (Coral Sea, Vanuatu)
Antipode	16.318°N / 13.149°W
Shaking intensity	Very strong shaking near epicenter
Felt	2 reports
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Ambrym (136 km / 85 mi)
Nearby towns and cities	65 km (40 mi) WSW of Norsup (pop: 3,000) \| Show on map \| Quakes nearby 95 km (59 mi) SSW of Santo (Luganville) (pop: 13,400) \| Show on map \| Quakes nearby 144 km (89 mi) S of Port-Olry (pop: 1,950) \| Show on map \| Quakes nearby 222 km (138 mi) NW of Port Vila (pop: 35,900) \| Show on map \| Quakes nearby 282 km (175 mi) SSW of Sola (pop: 1,170) \| Show on map \| Quakes nearby 441 km (274 mi) NW of Isangel (pop: 1,440) \| Show on map \| Quakes nearby 70 km (44 mi) W of Malakula Island (pop: 22,900) \| Show on map \| Quakes nearby 447 km (278 mi) NW of Tanna Island (pop: 28,800) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Broken Clouds 28.1°C (82 F), humidity: 75%, wind: 3 m/s (5 kts) from NE
Estimated seismic energy released	1.8 x 10¹⁴ joules (49.4 gigawatt hours, equivalent to 42502 tons of TNT or 2.7 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
6.3	10 km	Vanuatu	USGS
5.9	10 km	Vanuatu: Near Nouméa	RENASS
6.2	10 km	VANUATU	EMSC
6.3	10 km	Vanuatu Islands	RaspberryShake
6.5	17 km	Vanuatu Islands [Sea: Vanuatu]	INGV
6.3	10 km	Vanuatu Islands	GFZ
6.2	0.8 km	Vanuatu Islands	GeoAu

Most recent quakes Top 20 past 24 hrs Quakes in Vanuatu

Seismograms

Seismic station: Tucson, Arizona (TUC/IU network) | Distance from quake: 10278 km / 6386 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 (4)

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

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Translate

Port Vila, Shefa (221.5 km SE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s : In bed, heard the walls creak then felt movement | 7 users found this interesting. (reported through our app)

Wollongong / not felt (reported through our app)

Port vila / Weak shaking (MMI III) / horizontal (sideways) swinging / 20-30 s (reported through our app)

Lautoka,Fiji Islands / not felt

Aftershocks

[More info]

Recorded aftershocks, latest first (6 quakes)

Date and time	Mag Depth	Location	Details
Aug 14, 2022 05:23 33 weeks ago	5.0 10 km	Coral Sea, 26 km S of Santo, Luganville, Sanma Province, Vanuatu	More
Aug 14, 2022 03:27 33 weeks ago	4.9 10 km	Coral Sea, 38 km SW of Santo, Luganville, Sanma Province, Vanuatu	More
Aug 14, 2022 03:11 33 weeks ago - felt	5.9 10 km	Coral Sea, 33 km S of Santo, Luganville, Sanma Province, Vanuatu	More
Aug 13, 2022 18:04 33 weeks ago	4.9 24 km	Coral Sea, 26 km S of Santo, Luganville, Sanma Province, Vanuatu	More
Aug 13, 2022 13:02 33 weeks ago - felt	5.7 10 km	Coral Sea, 35 km S of Santo, Luganville, Sanma Province, Vanuatu	More
Apr 10, 2022 01:24 51 weeks ago	4.6 10 km	Malakula, 30 km S of Norsup, Malampa Province, Vanuatu	More

Earlier earthquakes in the same area

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