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Very strong mag. 6.1 earthquake - South Pacific Ocean, Tonga, on Friday, 19 Feb 2021 4:30 am (GMT +13)

Very strong mag. 6.1 earthquake - South Pacific Ocean, Tonga, on Friday, Feb 19, 2021 at 4:30 am (GMT +13)

Very strong mag. 6.1 earthquake - South Pacific Ocean, Tonga, on Friday, Feb 19, 2021 at 4:30 am (GMT +13) Very strong mag. 6.1 earthquake - South Pacific Ocean, Tonga, on Friday, Feb 19, 2021 at 4:30 am (GMT +13)

Very strong magnitude 6.1 earthquake at 10 km depth

18 Feb 15:41 UTC: First to report: GFZ after 11 minutes.
18 Feb 15:44: Epicenter location corrected by 6.7 km (4.1 mi) towards S.
18 Feb 16:30: Magnitude recalculated from 5.8 to 6.1. Epicenter location corrected by 9.3 km (5.8 mi) towards NW.

Earthquake details

Date & timeFeb 18, 2021 15:30:52 UTC
Local time at epicenterFriday, Feb 19, 2021 at 4:30 am (GMT +13)
Depth10.0 km
Epicenter latitude / longitude14.91°S / 176.71°W (South Pacific Ocean, Tonga)
Antipode14.91°N / 3.29°E
Shaking intensityStrong shaking near epicenter
Felt1 report
Primary data sourceGFZ (German Research Centre for Geosciences)
Nearest volcanoNiuafo'ou (139 km / 86 mi)
Nearby towns and cities170 km (106 mi) ESE of Leava (Sigave, Wallis & Futuna) (pop: 480) | Show on map | Quakes nearby
190 km (118 mi) SSW of Mata-Utu (Hahake, Wallis & Futuna) (pop: 1,200) | Show on map | Quakes nearby
333 km (207 mi) WNW of Hihifo (pop: 815) | Show on map | Quakes nearby
189 km (117 mi) SSW of Wallis Island (pop: 10,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeOvercast Clouds 28°C (82 F), humidity: 79%, wind: 7 m/s (14 kts) from ESE
Estimated seismic energy released8.9 x 1013 joules (24.8 gigawatt hours, equivalent to 21301 tons of TNT or 1.3 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.
6.110 kmFiji Islands Region, TongaGFZ
6.110 kmFIJI REGION, TongaEMSC
6.17.7 km158 Km ESE of Alo, Wallis And Futuna, TongaUSGS
6.14.8 kmFiji Islands Region, TongaGeoAu
6.110.2 kmTonga [Sea]INGV
6.010 kmFiji Islands Region, TongaBMKG

User reports for this quake (2)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Leave a comment if you find a particular report interesting or want to add to it.
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Send your own user report!
Leicester uk / not felt : I v suppose far from pacfic ocean United Kingdom on north sea  
apia / Violent shaking (MMI IX) : jj  


[More info]

Recorded aftershocks, latest first (3 quakes)

Date and timeMag
Feb 23, 2021 20:51
2 years ago

10 km
South Pacific Ocean, TongaMore
Feb 19, 2021 21:37
2 years ago

10 km
South Pacific Ocean, 181 km SW of Mata-Utu, Hahake, Uvéa, Wallis & FutunaMore
Feb 19, 2021 03:10
2 years ago

10 km
South Pacific Ocean, 172 km SW of Mata-Utu, Hahake, Uvéa, Wallis & FutunaMore

Earlier earthquakes in the same area

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