Strong mag. 6.2 earthquake - Tonga Islands (Samoa) on Saturday, 18 July 2020 - information

Strong mag. 6.2 earthquake - South Pacific Ocean, 238 km southwest of Apia, Tuamasaga, Samoa, on Saturday, July 18, 2020 at 15:32 (GMT)

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Strong mag. 6.2 earthquake - South Pacific Ocean, 238 km southwest of Apia, Tuamasaga, Samoa, on Saturday, July 18, 2020 at 15:32 (GMT)

Strong magnitude 6.2 earthquake at 34 km depth

18 Jul 15:42 UTC: First to report: GFZ after 9 minutes.
Jul 18 15:44: Magnitude recalculated from 5.8 to 5.9.
Jul 18 15:46: Magnitude recalculated from 5.9 to 6.0.
Jul 18 15:53: Magnitude recalculated from 6.0 to 6.1.
Hypocenter depth recalculated from 10.0 to 34.0 km.
Jul 18 16:44: Magnitude recalculated from 6.1 to 6.2.
Date & time: Jul 18, 2020 15:32:42 UTC -
Magnitude: 6.2
Depth: 34.0 km
Epicenter latitude / longitude: 15.54°S / 173.1°W (South Pacific Ocean, Samoa)
Antipode: 15.54°N / 6.9°E
Nearest volcano: Curacoa (81 km / 50 mi)
Nearby towns and cities:
216 km (134 mi) SSW of Vailoa (pop: 769) --> See nearby quakes!
222 km (138 mi) SSW of Mulifanua (pop: 4,510) --> See nearby quakes!
230 km (143 mi) SSW of Asau (pop: 6,640) --> See nearby quakes!
236 km (146 mi) SW of Afega (Malie) (pop: 1,900) --> See nearby quakes!
238 km (148 mi) SW of Apia (pop: 40,400) --> See nearby quakes!
244 km (152 mi) SSW of Safotu (pop: 1,210) --> See nearby quakes!
246 km (153 mi) SW of Lufilufi (pop: 1,070) --> See nearby quakes!
293 km (182 mi) WSW of Pago Pago (Ma'Oputasi, American Samoa) (pop: 11,500) --> See nearby quakes!
416 km (258 mi) SE of Mata-Utu (Hahake, Wallis & Futuna) (pop: 1,200) --> See nearby quakes!
517 km (321 mi) NW of Alofi (Niue) (pop: 624) --> See nearby quakes!
418 km (260 mi) SE of Wallis Island (pop: 10,000) --> See nearby quakes!
Primary data source: GFZ (German Research Centre for Geosciences)
Estimated released energy: 1.3 x 1014 joules (35 gigawatt hours, equivalent to 30089 tons of TNT or 1.9 atomic bombs!) More info
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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
6.234 kmTonga Islands (Samoa)GFZ
6.210 kmTonga (Samoa)EMSC
6.114 km144 km ENE of Hihifo, Tonga (Samoa)USGS
6.158 kmTonga Islands (Samoa)GeoAu
6.320 kmTonga [Sea] (Samoa)INGV
5.6171 kmTonga Islands (Samoa)BMKG

User reports for this quake (5)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Translate
unspecified (8361.8 km NE of epicenter) [Map] / not felt
Barstow / Violent shaking (MMI IX)
Apia, Samoa / Weak shaking (MMI III) : I felt it. To me it wasn't strong  
Viti / Violent shaking (MMI IX) : Many many suffering  
Salt lake city, 84104 / Very weak shaking (MMI II)
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Aftershocks

[More info]

Recorded aftershocks, latest first (17 quakes)

  • 15 Dec 2020 05:06 UTC
    | M 5.1 |
    10 km (6.2 mi) depth
    |
    43 km (27 mi) distance
    | USGS | Details
  • 13 Dec 2020 14:44 UTC
    | M 4.9 |
    8.6 km (5.3 mi) depth
    |
    62 km (39 mi) distance
    | USGS | Details
  • 02 Dec 2020 09:40 UTC
    | M 5.0 |
    35.9 km (22.3 mi) depth
    |
    26 km (16 mi) distance
    | GeoAu | Details
  • 29 Nov 2020 16:58 UTC
    | M 4.7 |
    7.7 km (4.8 mi) depth
    |
    65 km (41 mi) distance
    | USGS | Details
  • 16 Nov 2020 07:51 UTC
    | M 4.6 |
    110.3 km (68.5 mi) depth
    |
    70 km (44 mi) distance
    | USGS | Details
  • 25 Oct 2020 11:47 UTC
    | M 5.9 |
    42 km (26.1 mi) depth
    |
    60 km (38 mi) distance
    | GFZ | Details
  • 18 Oct 2020 02:33 UTC
    | M 4.6 |
    63.5 km (39.5 mi) depth
    |
    71 km (44 mi) distance
    | USGS | Details
  • 14 Sep 2020 19:53 UTC
    | M 4.7 |
    10 km (6.2 mi) depth
    |
    41 km (25 mi) distance
    | USGS | Details
  • 08 Sep 2020 08:28 UTC
    | M 5.4 |
    10 km (6.2 mi) depth
    |
    50 km (31 mi) distance
    | GFZ | Details
  • 30 Aug 2020 10:52 UTC
    | M 4.7 |
    10 km (6.2 mi) depth
    |
    64 km (40 mi) distance
    | USGS | Details
  • 25 Aug 2020 00:08 UTC
    | M 4.5 |
    10 km (6.2 mi) depth
    |
    72 km (45 mi) distance
    | USGS | Details
  • 15 Aug 2020 04:58 UTC
    | M 4.8 |
    10 km (6.2 mi) depth
    |
    43 km (27 mi) distance
    | USGS | Details
  • 15 Aug 2020 04:58 UTC
    | M 4.8 |
    10 km (6.2 mi) depth
    |
    43 km (27 mi) distance
    | USGS | Details
  • 14 Aug 2020 11:50 UTC
    | M 5.0 |
    104.4 km (64.9 mi) depth
    |
    29 km (18 mi) distance
    | GeoAu | Details
  • 01 Aug 2020 08:37 UTC
    | M 4.6 |
    10 km (6.2 mi) depth
    |
    44 km (27 mi) distance
    | USGS | Details
  • 22 Jul 2020 17:50 UTC
    | M 4.6 |
    9.2 km (5.7 mi) depth
    |
    49 km (31 mi) distance
    | USGS | Details
  • 21 Jul 2020 14:43 UTC
    | M 4.6 |
    10 km (6.2 mi) depth
    |
    70 km (44 mi) distance
    | USGS | Details

Earlier earthquakes in the same area

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