Very strong mag. 6.0 earthquake - South Pacific Ocean, 215 km northwest of Nukalofa, Nuku'alofa, Tongatapu, on Tuesday, Sep 7, 2021 at 10:49 pm (GMT +13) -

Very strong mag. 6.0 earthquake - South Pacific Ocean, 215 km northwest of Nukalofa, Nuku\'alofa, Tongatapu, on Tuesday, Sep 7, 2021 at 10:49 pm (GMT +13) Very strong mag. 6.0 earthquake - South Pacific Ocean, 215 km northwest of Nukalofa, Nuku\'alofa, Tongatapu, on Tuesday, Sep 7, 2021 at 10:49 pm (GMT +13)

Very strong magnitude 6.0 earthquake at 10 km depth

7 Sep 10:01 UTC: First to report: GFZ after 12 minutes.
7 Sep 10:03: Epicenter location corrected by 9.7 km (6 mi) towards WSW.
7 Sep 10:49: Magnitude recalculated from 5.5 to 6.0.

Earthquake details

Date & timeSep 7, 2021 09:49:57 UTC -
Local time at epicenterTuesday, Sep 7, 2021 at 10:49 pm (GMT +13)
StatusConfirmed
Magnitude6
Depth10.0 km
Epicenter latitude / longitude19.4°S / 176.11°W (South Pacific Ocean, Tonga)
Antipode19.4°N / 3.89°E
Shaking intensitySevere shaking
Felt1 report
Primary data sourceGFZ (German Research Centre for Geosciences)
Nearest volcanoTofua (108 km / 67 mi)
Nearby towns and cities190 km (118 mi) WNW of Bangai (Pangai) (pop: 1,740) | Show on map | Quakes nearby
215 km (134 mi) NNW of Nukalofa (Nuku'alofa) (pop: 22,400) | Show on map | Quakes nearby
215 km (134 mi) NNW of Nuku‘alofa (pop: 22,400) | Show on map | Quakes nearby
221 km (138 mi) NNW of Kolonga (pop: 1,100) | Show on map | Quakes nearby
239 km (148 mi) WSW of Neiafu (pop: 4,320) | Show on map | Quakes nearby
247 km (153 mi) NNW of ‘Ohonua (Ohonua) (pop: 1,240) | Show on map | Quakes nearby
455 km (283 mi) SSW of Hihifo (pop: 815) | Show on map | Quakes nearby
220 km (137 mi) NNW of Amsterdam Island (pop: 75,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeClear Sky 24.5°C (76 F), humidity: 88%, wind: 3 m/s (6 kts) from ENE
Estimated seismic energy released6.3 x 1013 joules (17.5 gigawatt hours, equivalent to 15080 tons of TNT or 0.9 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.DepthLocationSource
6.010 kmTonga: Fiji Islands RegionGFZ
5.810 kmTonga: FIJI REGIONEMSC
6.116 kmTonga: Fiji Islands RegionBMKG
5.310 kmTonga: Near NouméaRENASS
6.010 kmTonga: Fiji RegionUSGS
6.010 kmTonga: Fiji Islands RegionGeoAu

User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Murcia / Severe shaking (MMI VIII) / complex motion difficult to describe / several minutes : Mi Murcia bonica que se me destruye | 2 users found this interesting.  
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Aftershocks

[More info]

Recorded aftershocks, latest first (2 quakes)

Date and timeMag
Depth
LocationDetails
Jan 27, 2022 06:40
28 weeks ago - felt
6.2

4.2 km
South Pacific Ocean, TongaMore
Sep 9, 2021 04:59
48 weeks ago
5.8

10 km
South Pacific Ocean, 228 km NW of Nukalofa, Nuku'alofa, TongatapuMore

Earlier earthquakes in the same area

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