Strong mag. 6.6 earthquake - Vanuatu Islands on Wednesday, 31 July 2019 - information

Strong mag. 6.6 earthquake - Vanuatu Islands on Wednesday, 31 July 2019 at 15:02 (GMT)

Strong mag. 6.6 earthquake  - Vanuatu Islands on Wednesday, 31 July 2019 at 15:02 (GMT)

Strong magnitude 6.6 earthquake at 195 km depth

31 Jul 15:11 UTC: First to report: GFZ after 9 minutes.
Hypocenter depth recalculated from 197.0 to 195.0 km.
Jul 31 15:32: Magnitude recalculated from 6.5 to 6.6.
Date & time: 31 Jul 2019 15:02:35 UTC
Magnitude: 6.6
Depth: 195.0 km
Epicenter latitude / longitude: 16.19°S / 167.94°E (Vanuatu)
Nearest volcano: Ambrym (20 km / 12 mi)
Nearby towns and cities:
57 km (35 mi) E of Lakatoro (pop: 705) --> See nearby quakes!
112 km (69 mi) SE of Luganville (pop: 13,400) --> See nearby quakes!
158 km (98 mi) SE of Port-Olry (pop: 1,950) --> See nearby quakes!
177 km (110 mi) NNW of Port Vila (pop: 35,900) --> See nearby quakes!
261 km (162 mi) S of Sola (pop: 1,170) --> See nearby quakes!
399 km (248 mi) NNW of Isangel (pop: 1,440) --> See nearby quakes!
20 km (12 mi) WNW of Ambrym Island (pop: 7,280) --> See nearby quakes!
397 km (246 mi) NNW of Tanna Island (pop: 28,800) --> See nearby quakes!
Primary data source: GFZ (German Research Centre for Geosciences)
Estimated released energy: 5 x 1014 joules (139 gigawatt hours, equivalent to 1.2 x 105 tons of TNT or 7.5 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.
MagnitudeDepthLocationSource
M 6.6195 kmVanuatu IslandsGFZ
M 6.5192 kmVanuatuEMSC
M 6.6179 km56km E of Lakatoro, VanuatuUSGS
M 6.6156 kmVanuatu IslandsBMKG
M 6.6178 kmVanuatu IslandsGeoAu
M 6.4184 kmVanuatu Islands [Sea: Vanuatu]INGV

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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vanuatu / Strong shaking (MMI VI)
Aore island / Light shaking (MMI IV)
Ratua island (103.3 km NW of epicenter) [Map] / Moderate shaking (MMI V) : In bed whole house shook checked for tsunami alert about 20 feet from the ocean !
Russia. Sankt-Peterburg.not felt. / not felt : Не почувствовал и не ощущал, был дома, ужинал, в квартирах всё тихо и спокойно, Вам большое спасибо, пожалуйста, берегите себя и своих родных и близких. Да, геологиярулит.
Luganville, Espiritu Santo Island (109.3 km NW of epicenter) [Map] / Light shaking (MMI IV) : I don't know if it is the same earthquake, but it was at the same time. Luganville is far from the epicenter.
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Aftershocks

More info
Recorded aftershocks, latest first (10 quakes):
  • 11 Jan 2020 09:03 UTC
    | M 5.1 |
    10 km (6.2 mi) depth
    |
    53 km (33 mi) distance
    | USGS | Details
  • 10 Jan 2020 20:06 UTC
    | M 5.2 |
    10 km (6.2 mi) depth
    |
    67 km (42 mi) distance
    | GFZ | Details
  • 10 Jan 2020 16:32 UTC
    | M 4.9 |
    112 km (69.6 mi) depth
    |
    100 km (62 mi) distance
    | GeoAu | Details
  • 15 Dec 2019 16:32 UTC
    | M 5.0 |
    103 km (64 mi) depth
    |
    98 km (61 mi) distance
    | BMKG | Details
  • 12 Nov 2019 15:51 UTC
    | M 4.6 |
    116 km (72.1 mi) depth
    |
    103 km (64 mi) distance
    | BMKG | Details
  • 21 Oct 2019 16:23 UTC
    | M 4.4 |
    180 km (111.8 mi) depth
    |
    76 km (47 mi) distance
    | USGS | Details
  • 21 Aug 2019 18:37 UTC
    | M 4.5 |
    124.3 km (77.2 mi) depth
    |
    68 km (42 mi) distance
    | USGS | Details
  • 15 Aug 2019 08:08 UTC
    | M 4.5 |
    175.2 km (108.9 mi) depth
    |
    14 km (9 mi) distance
    | USGS | Details
  • 07 Aug 2019 05:32 UTC
    | M 5.4 |
    119 km (73.9 mi) depth
    |
    78 km (48 mi) distance
    | GFZ | Details
  • 31 Jul 2019 19:11 UTC
    | M 5.0 |
    188 km (116.8 mi) depth
    |
    5 km (3 mi) distance
    | USGS | Details

Earlier earthquakes in the same area

Strong mag. 6.6 earthquake - Vanuatu Islands on Wednesday, 31 July 2019 at 15:02 (GMT)
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