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Strong mag. 6.2 earthquake - Tonga Islands on Saturday, 7 November 2020 at 09:27 (GMT) - information

Strong mag. 6.2 earthquake - South Pacific Ocean, 84 km north of Hihifo, Niuas, Tonga, on Saturday, Nov 7, 2020 at 10:27 pm (GMT +13)

Strong mag. 6.2 earthquake - South Pacific Ocean, 84 km north of Hihifo, Niuas, Tonga, on Saturday, Nov 7, 2020 at 10:27 pm (GMT +13) Strong mag. 6.2 earthquake - South Pacific Ocean, 84 km north of Hihifo, Niuas, Tonga, on Saturday, Nov 7, 2020 at 10:27 pm (GMT +13)

Strong magnitude 6.2 earthquake at 64 km depth

7 Nov 09:36 UTC: First to report: GFZ after 9 minutes.
7 Nov 09:39: Epicenter location corrected by 11 km (7 mi) towards WNW.
7 Nov 10:00: Magnitude recalculated from 6.1 to 6.2.
7 Nov 10:00: Hypocenter depth recalculated from 10.0 to 64.0 km (from 6.2 to 40 mi). Epicenter location corrected by 24 km (15 mi) towards WNW.
Update Sat, 7 Nov 2020, 09:39

Significant 6.1 quake hits near Hihifo, Samoa

6.1 quake 75 km NNE of Hihifo, Tonga, Samoa, 7 Nov 10.27 pm (GMT +13)
6.1 quake 75 km NNE of Hihifo, Tonga, Samoa, 7 Nov 10.27 pm (GMT +13)
The German Research Centre for Geosciences (GFZ) reported a magnitude 6.1 quake in Samoa near the village of Hihifo only 12 minutes ago. The earthquake hit late at night on Saturday 7 November 2020 at 10.27 pm local time at a shallow depth of 10 km. 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.
A second report was later issued by the United States Geological Survey (USGS), which listed it as a magnitude 6.4 earthquake. A third agency, the European-Mediterranean Seismological Centre (EMSC), reported the same quake at magnitude 6.2.
Based on the preliminary seismic data, the quake should have been widely felt by almost everyone in the area of the epicenter. It might have caused light to moderate damage. Moderate shaking probably occurred in Hihifo (pop. 800) located 75 km from the epicenter.
This story will be updated soon by VolcanoDiscovery. 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 7, 2020 09:27:09 UTC
Local time at epicenterSaturday, Nov 7, 2020 at 10:27 pm (GMT +13)
StatusConfirmed
Magnitude6.2
Depth64.0 km
Epicenter latitude / longitude15.2°S / 173.82°W (South Pacific Ocean, Tonga)
Antipode15.2°N / 6.18°E
Shaking intensityModerate shaking
Felt10 reports
Primary data sourceGFZ (German Research Centre for Geosciences)
Nearest volcanoWest Mata (26 km / 16 mi)
Nearby towns and cities84 km (52 mi) N of Hihifo (pop: 815) | Show on map | Quakes nearby
226 km (141 mi) SW of Asau (Samoa) (pop: 6,640) | Show on map | Quakes nearby
245 km (152 mi) SW of Mulifanua (Samoa) (pop: 4,510) | Show on map | Quakes nearby
247 km (154 mi) SW of Safotu (Samoa) (pop: 1,210) | Show on map | Quakes nearby
255 km (158 mi) SW of Fasito‘outa (Samoa) (pop: 2,100) | Show on map | Quakes nearby
268 km (167 mi) SW of Apia (Samoa) (pop: 40,400) | Show on map | Quakes nearby
332 km (206 mi) SE of Mata-Utu (Hahake, Wallis & Futuna) (pop: 1,200) | Show on map | Quakes nearby
347 km (216 mi) WSW of Tāfuna (Tualauta, American Samoa) (pop: 11,000) | Show on map | Quakes nearby
351 km (218 mi) WSW of Pago Pago (Ma'Oputasi, American Samoa) (pop: 11,500) | Show on map | Quakes nearby
384 km (239 mi) N of Neiafu (pop: 4,320) | Show on map | Quakes nearby
334 km (208 mi) SE of Wallis Island (pop: 10,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeScattered Clouds 26.9°C (80 F), humidity: 78%, wind: 8 m/s (16 kts) from ESE
Estimated seismic energy released1.3 x 1014 joules (35 gigawatt hours, equivalent to 30089 tons of TNT or 1.9 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
6.264 kmTonga IslandsGFZ
5.940 kmTONGA, SamoaEMSC
6.129 km79 Km NNE of Hihifo, Tonga, SamoaUSGS
6.249 kmTonga Islands, SamoaGeoAu
6.320 kmTonga Islands [Sea: Tonga], SamoaINGV
5.910 kmTonga Islands, SamoaBMKG

Seismograms

Seismic station: Funafuti, Tuvalu (FUNA/IU network) | Distance from quake: 1062 km / 660 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. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (11)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Contribute:
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Mata-Utu, Uvea (334 km NW of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
Apia, Tuamasaga (276.1 km NE of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 20-30 s
Leone, Western District (340.5 km ENE of epicenter) [Map] / Light shaking (MMI IV)
near Safotu, Gagaifomauga (236.1 km NE of epicenter) [Map] / Strong shaking (MMI VI)
Tiapapata (261.8 km NE of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 1-2 s
Apia (269.8 km NE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Tafuna American Samoa / Light shaking (MMI IV) / complex rolling (tilting in multiple directions) / 5-10 s : One moderate jolt to start then a soft slow rolling motion for about 10 seconds | 3 users found this interesting.  
Apia / Moderate shaking (MMI V) / horizontal (sideways) swinging / 2-5 s
Apia / Moderate shaking (MMI V)
American Samoa / Moderate shaking (MMI V)
Alele (Wallis and Futuna, 363 km NW of epicenter) : Petite secousse (reported through EMSC)  

Aftershocks

[More info]

Recorded aftershocks, latest first (8 quakes)

Date and timeMag
Depth
LocationDetails
May 5, 2021 05:05
1 year 31 weeks ago
4.6

68 km
South Pacific Ocean, 48 km NE of Hihifo, Niuas, TongaMore
Apr 25, 2021 21:07
1 year 33 weeks ago
4.7

10 km
South Pacific Ocean, 209 km SW of Apia, Tuamasaga, SamoaMore
Feb 24, 2021 19:19
1 year 41 weeks ago
5.0

10 km
South Pacific Ocean, 215 km SW of Apia, Tuamasaga, SamoaMore
Feb 22, 2021 13:24
1 year 42 weeks ago
5.0

10 km
South Pacific Ocean, 232 km SW of Apia, Tuamasaga, SamoaMore
Feb 8, 2021 06:56
1 year 44 weeks ago
4.9

32 km
South Pacific Ocean, 38 km N of Hihifo, Niuas, TongaMore
Jan 19, 2021 10:47
1 year 46 weeks ago
4.5

35 km
South Pacific Ocean, 253 km SW of Apia, Tuamasaga, SamoaMore
Dec 13, 2020 14:44
1 year 52 weeks ago
4.9

8.6 km
South Pacific Ocean, 220 km SW of Apia, Tuamasaga, SamoaMore
Nov 29, 2020 16:58
2 years ago
4.7

7.7 km
South Pacific Ocean, 232 km SW of Apia, Tuamasaga, SamoaMore

Earlier earthquakes in the same area

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