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Moderate mag. 5.2 earthquake - South Pacific Ocean, 40 km southwest of Bangai, Pangai, Ha‘apai, Tonga, on Friday, Oct 21, 2022 at 10:18 pm (GMT +13) -

Moderate mag. 5.2 earthquake - South Pacific Ocean, 40 km southwest of Bangai, Pangai, Ha‘apai, Tonga, on Friday, Oct 21, 2022 at 10:18 pm (GMT +13) Moderate mag. 5.2 earthquake - South Pacific Ocean, 40 km southwest of Bangai, Pangai, Ha‘apai, Tonga, on Friday, Oct 21, 2022 at 10:18 pm (GMT +13)

Moderate magnitude 5.2 earthquake at 151 km depth

21 Oct 09:30 UTC: First to report: GFZ after 12 minutes.
21 Oct 09:38: Now using data updates from USGS
Update Fri, 21 Oct 2022, 09:36

Moderate yet deep 5.0 quake hits near Bangai, Pangai, Ha‘apai, Tonga

5.0 quake 21 Oct 10:18 pm (GMT +13)
5.0 quake 21 Oct 10:18 pm (GMT +13)
A magnitude 5.0 earthquake near Bangai, Pangai, Ha'apai, Tonga, was reported only 17 minutes ago by the German Research Centre for Geosciences (GFZ), considered one of the key international agencies that monitor seismic activity worldwide. The earthquake occurred at an intermediate to considerable depth of 161 km beneath the epicenter late at night on Friday, October 21st, 2022, at 10:18 pm local time. 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.
Our monitoring service identified a second report from France's Réseau National de Surveillance Sismique (RéNaSS) which listed the quake at magnitude 5.1. Other agencies reporting the same quake include the citizen-seismograph network of RaspberryShake at magnitude 5.0, and the European-Mediterranean Seismological Centre (EMSC) at magnitude 5.1.
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.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Bangai (pop. 1,700) located 69 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 & timeOct 21, 2022 09:18:35 UTC -
Local time at epicenterFriday, Oct 21, 2022 at 10:18 pm (GMT +13)
Depth150.6 km
Epicenter latitude / longitude19.9683°S / 174.7°W (South Pacific Ocean, Tonga)
Antipode19.968°N / 5.3°E
Shaking intensityWeak shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoTofua (46 km / 29 mi)
Nearby towns and cities40 km (25 mi) WSW of Bangai (Pangai) (pop: 1,740) | Show on map | Quakes nearby
135 km (84 mi) NNE of Kolonga (pop: 1,100) | Show on map | Quakes nearby
140 km (87 mi) NNE of Nukalofa (Nuku'alofa) (pop: 22,400) | Show on map | Quakes nearby
140 km (87 mi) NNE of Nuku‘alofa (pop: 22,400) | Show on map | Quakes nearby
154 km (96 mi) N of ‘Ohonua (Ohonua) (pop: 1,240) | Show on map | Quakes nearby
165 km (102 mi) SSW of Neiafu (pop: 4,320) | Show on map | Quakes nearby
143 km (89 mi) NNE of Amsterdam Island (pop: 75,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeBroken Clouds 24.8°C (77 F), humidity: 80%, wind: 5 m/s (10 kts) from ESE
Estimated seismic energy released4 x 1012 joules (1.11 gigawatt hours, equivalent to 951 tons of TNT) | 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.
5.2151 km40 Km WSW of Pangai, TongaUSGS
5.2135 kmTONGAEMSC
5.2151 kmTonga IslandsRaspberryShake
5.1139 kmTonga: Near NouméaRENASS
5.1155 kmTonga IslandsGFZ
5.2117 kmTonga IslandsGeoAu
5.210 kmTonga IslandsIRIS


Seismic station: Funafuti, Tuvalu (FUNA/IU network) | Distance from quake: 1432 km / 890 mi | Show on map | Station Info
Seismic station Funafuti, Tuvalu: 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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