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Moderate mag. 5.5 earthquake - South Pacific Ocean, 34 km southwest of Hihifo, Niuas, Tonga, on Tuesday, Feb 22, 2022 at 11:44 pm (GMT +13) -

Moderate mag. 5.5 earthquake - South Pacific Ocean, 34 km southwest of Hihifo, Niuas, Tonga, on Tuesday, Feb 22, 2022 at 11:44 pm (GMT +13) Moderate mag. 5.5 earthquake - South Pacific Ocean, 34 km southwest of Hihifo, Niuas, Tonga, on Tuesday, Feb 22, 2022 at 11:44 pm (GMT +13)

Moderate magnitude 5.5 earthquake at 159 km depth

22 Feb 10:53 UTC: First to report: GFZ after 9 minutes.
22 Feb 10:56: Magnitude recalculated from 5.5 to 5.6. Hypocenter depth recalculated from 196.0 to 197.0 km (from 122 to 122 mi).
22 Feb 11:01: Now using data updates from USGS
22 Feb 11:03: Magnitude recalculated from 6.0 to 5.5. Hypocenter depth recalculated from 197.9 to 159.1 km (from 123 to 99 mi). Epicenter location corrected by 5.3 km (3.3 mi) towards ESE.
Update Tue, 22 Feb 2022, 11:00

Magnitude 5.6 earthquake strikes near Hihifo, Niuas, Tonga

5.6 quake 22 Feb 11:44 pm (GMT +13)
5.6 quake 22 Feb 11:44 pm (GMT +13)
Just 16 minutes ago, a 5.6-magnitude earthquake struck near Hihifo, Niuas, Tonga. The tremor was recorded late at night on Tuesday, February 22nd, 2022, at 11:44 pm local time, at an intermediate to considerable depth of 197 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 France's Réseau National de Surveillance Sismique (RéNaSS), which listed it as a magnitude 5.4 earthquake. Other agencies reporting the same quake include the citizen-seismograph network of RaspberryShake at magnitude 5.6, and the European-Mediterranean Seismological Centre (EMSC) at magnitude 5.3.
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 Hihifo (pop. 820) located 40 km from the epicenter.
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 & timeFeb 22, 2022 10:44:09 UTC -
Local time at epicenterTuesday, Feb 22, 2022 at 11:44 pm (GMT +13)
Depth159.1 km
Epicenter latitude / longitude16.1408°S / 174.0505°W (South Pacific Ocean, Tonga)
Antipode16.141°N / 5.95°E
Shaking intensityWeak shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoTafahi (48 km / 30 mi)
Nearby towns and cities34 km (21 mi) SW of Hihifo (pop: 815) | Show on map | Quakes nearby
279 km (174 mi) N of Neiafu (pop: 4,320) | Show on map | Quakes nearby
329 km (204 mi) SSW of Asau (Samoa) (pop: 6,640) | Show on map | Quakes nearby
336 km (209 mi) SW of Mulifanua (Samoa) (pop: 4,510) | Show on map | Quakes nearby
344 km (214 mi) SW of Fasito‘outa (Samoa) (pop: 2,100) | Show on map | Quakes nearby
348 km (216 mi) SSW of Safotu (Samoa) (pop: 1,210) | Show on map | Quakes nearby
355 km (221 mi) SW of Apia (Samoa) (pop: 40,400) | Show on map | Quakes nearby
392 km (243 mi) SE of Mata-Utu (Hahake, Wallis & Futuna) (pop: 1,200) | Show on map | Quakes nearby
410 km (255 mi) WSW of Tāfuna (Tualauta, American Samoa) (pop: 11,000) | Show on map | Quakes nearby
415 km (258 mi) WSW of Pago Pago (Ma'Oputasi, American Samoa) (pop: 11,500) | Show on map | Quakes nearby
394 km (245 mi) SE of Wallis Island (pop: 10,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeModerate Rain 27.5°C (82 F), humidity: 75%, wind: 4 m/s (8 kts) from NNE
Estimated seismic energy released1.1 x 1013 joules (3.12 gigawatt hours, equivalent to 2682 tons of TNT or 0.2 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.
5.5159 km34 Km SW of Hihifo, TongaUSGS
5.5175 kmTONGAEMSC
5.5159 kmTonga IslandsRaspberryShake
5.3197 kmTonga: Near NouméaRENASS
5.9183 kmTonga IslandsGFZ
5.9196 kmTonga IslandsGeoAu

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.


Please check again later while we are collecting more data.

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