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Moderate mag. 5.4 earthquake - South Pacific Ocean, 144 km east of Nukalofa, Nuku'alofa, Tongatapu, on Monday, Nov 28, 2022 at 10:30 pm (GMT +13) -

Moderate mag. 5.4 earthquake - South Pacific Ocean, 144 km east of Nukalofa, Nuku\'alofa, Tongatapu, on Monday, Nov 28, 2022 at 10:30 pm (GMT +13) Moderate mag. 5.4 earthquake - South Pacific Ocean, 144 km east of Nukalofa, Nuku\'alofa, Tongatapu, on Monday, Nov 28, 2022 at 10:30 pm (GMT +13)

Moderate magnitude 5.4 earthquake at 44 km depth

28 Nov 09:40 UTC: First to report: GFZ after 10 minutes.
28 Nov 09:43: Magnitude recalculated from 5.4 to 5.5. Hypocenter depth recalculated from 113.0 to 90.0 km (from 70 to 56 mi). Epicenter location corrected by 16 km (9.7 mi) towards WSW.
28 Nov 09:51: Now using data updates from USGS
Update Mon, 28 Nov 2022, 09:48

Magnitude 5.5 earthquake strikes near Nukalofa, Nuku'alofa, Tongatapu, Tonga

5.5 quake 28 Nov 10:30 pm (GMT +13)
5.5 quake 28 Nov 10:30 pm (GMT +13)
Just 17 minutes ago, a 5.5-magnitude earthquake struck near Nukalofa, Nuku'alofa, Tongatapu, Tonga. The tremor was recorded late at night on Monday, November 28th, 2022, at 10:30 pm local time, at an intermediate depth of 90 km below the surface.
The event was filed by the German Research Centre for Geosciences (GFZ), the first seismological agency to report it.
A second report was later issued by the citizen-seismograph network of RaspberryShake, which listed it as a magnitude 5.5 earthquake as well. Other agencies reporting the same quake include France's Réseau National de Surveillance Sismique (RéNaSS) at magnitude 5.5, and the European-Mediterranean Seismological Centre (EMSC) at magnitude 5.4.
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 should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in 'Ohonua (pop. 1,200) located 58 km from the epicenter, Kolonga (pop. 1,100) 73 km away, Lapaha (pop. 8,000) 77 km away, Nukalofa (pop. 22,400) 86 km away, Nuku'alofa (pop. 22,400) 86 km away, and Haveluloto (pop. 3,400) 87 km away.
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 & timeNov 28, 2022 09:30:27 UTC -
Local time at epicenterMonday, Nov 28, 2022 at 10:30 pm (GMT +13)
Depth43.6 km
Epicenter latitude / longitude21.3843°S / 173.8365°W (South Pacific Ocean, Tonga)
Antipode21.384°N / 6.164°E
Shaking intensityLight shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoHunga Tonga-Hunga Ha'apai (184 km / 114 mi)
Nearby towns and cities115 km (72 mi) E of ‘Ohonua (Ohonua) (pop: 1,240) | Show on map | Quakes nearby
131 km (81 mi) ESE of Kolonga (pop: 1,100) | Show on map | Quakes nearby
144 km (90 mi) E of Nukalofa (Nuku'alofa) (pop: 22,400) | Show on map | Quakes nearby
144 km (90 mi) E of Nuku‘alofa (pop: 22,400) | Show on map | Quakes nearby
183 km (114 mi) SSE of Bangai (Pangai) (pop: 1,740) | Show on map | Quakes nearby
304 km (189 mi) S of Neiafu (pop: 4,320) | Show on map | Quakes nearby
142 km (88 mi) E of Amsterdam Island (pop: 75,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeOvercast Clouds 26.2°C (79 F), humidity: 81%, wind: 5 m/s (10 kts) from E
Estimated seismic energy released7.9 x 1012 joules (2.21 gigawatt hours, equivalent to 1898 tons of TNT or 0.1 atomic bombs!) | about seismic energy
Show interactive Map
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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.
5.444 km115 Km E of ‘Ohonua, TongaUSGS
5.710 kmTonga: Near North ShoreRENASS
5.444 kmTonga IslandsRaspberryShake
5.450 kmTonga IslandsGFZ
5.439 kmTonga IslandsGeoAu
5.410 kmTonga IslandsIRIS


Seismic station: Rarotonga, Cook Islands (RAR/IU network) | Distance from quake: 1457 km / 905 mi | Show on map | Station Info
Seismic station Rarotonga, Cook Islands: 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: 0.02-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
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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.


[More info]

Recorded aftershocks, latest first (0 quake)

So far, no aftershocks have been registered.

Earlier earthquakes in the same area

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