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Great mag. 8.1 earthquake - Fiji Islands Region on Sunday, 19 August 2018 - information

Great mag. 8.1 earthquake - Fiji Islands Region on Sunday, 19 August 2018

Great mag. 8.1 earthquake  - Fiji Islands Region on Sunday, 19 August 2018
19 Aug 00:27 UTC: First to report: GFZ after 7 minutes.
Aug 19 00:28: Magnitude recalculated from 7.6 to 7.8.
Hypocenter depth recalculated from 587.0 to 577.0 km.
Hypocenter depth recalculated from 577.0 to 574.0 km.
Aug 19 00:30: Magnitude recalculated from 7.8 to 7.9.
Hypocenter depth recalculated from 574.0 to 578.0 km.
Aug 19 00:31: Magnitude recalculated from 7.9 to 8.0.
Hypocenter depth recalculated from 578.0 to 576.0 km.
Aug 19 00:47: Magnitude recalculated from 8.0 to 8.1.
Hypocenter depth recalculated from 576.0 to 566.0 km.
Date & time: Sunday, 19 August 2018 00:19 UTC
Magnitude: 8.1
Depth: 566.0 km
Epicenter latitude / longitude: 18.03°S / 178.28°W (Fiji)
Nearest volcano: Taveuni (244 km / 152 mi)
Primary data source: GFZ
Estimated released energy: 8.9 x 1016 joules (24757 gigawatt hours, equivalent to 2.1 x 107 tons of TNT or 1331.3 atomic bombs!) [learn more]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

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.
TimeMag. / DepthLocationSource
Sun, 19 Aug 00:19 UTCM 8.1 / 566 kmFiji Islands RegionGFZ
Sun, 19 Aug 00:19 UTCM 8.2 / 563.4 km- 281km NNE of Ndoi Island, FijiUSGS
Sun, 19 Aug 00:19 UTCM 8.2 / 558 km FIJI REGIONEMSC

shake map
(shakemap: USGS)

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (modified Mercalli) scale.
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Leave a comment if you find a particular report interesting or want to add to it.
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Vava u Tonga / Moderate shaking (MMI V) : Because we were on a dock it was confusing whether it was the ocean or an earthquake. But it lasted enough to feel it WAS an earthquake
Sigatoka / Moderate shaking (MMI V)
Avonsleigh Victoria Australia (4142.3 km SW of epicenter) [Map] / Very weak shaking (MMI II) : Felt an initial rumble through the floor, wave like, followed shortly after by a weaker audible rumble. I was in bed at the time.
3522.8 km SW of epicenter [Map] / not felt (reported through our app)
Vlaardingen / not felt
Tokoriki / not felt
457.9 km SE of epicenter [Map] / Light shaking (MMI IV)
SUVA / not felt
2954 km SSW of epicenter [Map] / not felt : Christurch.no felt (reported through our app)
Nadi Fiji / Light shaking (MMI IV)
449.7 km W of epicenter [Map] / Strong shaking (MMI VI)
Unud / Light shaking (MMI IV)
NAVUA (377.3 km W of epicenter) [Map] / Light shaking (MMI IV) : Light shake
Viti Levu, Fiji / Weak shaking (MMI III) : I was sitting at my outside table on my deck
Suva / Very weak shaking (MMI II)
Fifi / Very strong shaking (MMI VII)
port vila / Very weak shaking (MMI II) : Outdoor signs fell over
Suva city, Domain area / not felt
Tonga / Very weak shaking (MMI II) : No issue
Ph (7089.3 km WNW of epicenter) [Map] / not felt
Denarau island / Light shaking (MMI IV) : We are located on the second floor. We were sitting on the couch when we suddenly started to rock
461.7 km W of epicenter [Map] / Very weak shaking (MMI II)
Labasa / Light shaking (MMI IV) : Was lying on my back...Felt someone was dragging me...
Denarau Island Golf Club Fiji / Weak shaking (MMI III)
Apia Samoa / Very weak shaking (MMI II) : Felt a small shake that went lasted about 10 seconds ..im in Samoa
FNPF Place, Suva, Fiji. (348.7 km W of epicenter) [Map] / Light shaking (MMI IV) : Felt the whole building shake. Was like the building is flexible.
Lautoka Fiji / Weak shaking (MMI III) : I was in the livingroom n felt that the couch i was on was on an elevator. Felt like a tremor.
Nadi / Moderate shaking (MMI V) : Big shake
Fiji pacific harbour / Light shaking (MMI IV)
Vava'u Tonga (456.5 km E of epicenter) [Map] / Moderate shaking (MMI V) : Very definite rumbling and swirling movement. Felt inside and outside with TV and ornaments rocking. Went on for some time. Was building to strong then weaker then again felt it not quite as strong
Suva / Light shaking (MMI IV)
Suva (344.4 km W of epicenter) [Map] / Weak shaking (MMI III)
Ha'apai Tonga (460.7 km ESE of epicenter) [Map] / Moderate shaking (MMI V) (reported through our app)
Chicago Illinois United States / Light shaking (MMI IV) : Not sure this is possible but had at the same time had some shaking in the Chicago area.
Vinod street Suva (344.3 km W of epicenter) [Map] / Weak shaking (MMI III) : The ground was shaking in waves as if sitting on a boat
nadi / Light shaking (MMI IV)
Bali, Ubud / Weak shaking (MMI III)
339 km W of epicenter [Map] / Light shaking (MMI IV) : It lasted a few seconds which was quite long
Naviti resort, fiji / Weak shaking (MMI III)
Nausori,fiji / Moderate shaking (MMI V)
sheraton Denarau (454.2 km W of epicenter) [Map] / Light shaking (MMI IV) : i felt it. bed moving
Port demerau / Weak shaking (MMI III)
Los Angeles / Very weak shaking (MMI II) : I felt a little bump while I was sitting down.
Hilton Fiji beach island and resort / Moderate shaking (MMI V) : Felt like I was on a boat while relaxing on the day bed
Nadi / Weak shaking (MMI III)
Denarau Island Nadi / Light shaking (MMI IV) : Light shaking for 1-2 minutes
fiji / Moderate shaking (MMI V) : visiting from california. saw hanging ceiling lights sway for about 5 minutes.
Fiji, main island, pacific harbour / Weak shaking (MMI III) : Felt the ground moving from side to side for like for 15 seconds
Pacific Har (386.7 km W of epicenter) [Map] / Moderate shaking (MMI V)
Denarau Island / Very weak shaking (MMI II)
Koronivia, Nausori (337.5 km W of epicenter) [Map] / Severe shaking (MMI VIII)
337.9 km W of epicenter [Map] / Light shaking (MMI IV)
Nadi / Weak shaking (MMI III)
Denarau Island Nadi Fiji / Moderate shaking (MMI V) : Water in swimming pool moved from side to side in a hurry.
Valelevu / not felt
454.5 km ESE of epicenter [Map] / Moderate shaking (MMI V)
WAIYEVO waitavala taveuni / Severe shaking (MMI VIII) : Taveuni
nasinu, fiji / Light shaking (MMI IV)
Denarau Nadi / Moderate shaking (MMI V)
Denerau island / Light shaking (MMI IV) : Definite swaying for a prolonged time
Nadi / Very weak shaking (MMI II)
460.3 km W of epicenter [Map] / Light shaking (MMI IV)
302.2 km NW of epicenter [Map] / Weak shaking (MMI III)
Pacific harbour / Light shaking (MMI IV)
Pago Pago (American Samoa, 902 km NE of epicenter) : Felt here in American Samoa, United States. (reported through EMSC)
Suva (Fiji, 363 km W of epicenter) : Nothing felt at Capital city (reported through EMSC)

Aftershocks of the 8.1 quake: Fiji Islands Region, 19 Aug 2018 00h19

Show info about this
List of recorded aftershocks, latest first (898 quakes):
  • 24 Sep 2020 01:30 UTC
    | M 4.6 |
    116 km (72.1 mi) depth
    |
    495 km (308 mi) distance
    | EMSC | Details
  • 23 Sep 2020 14:23 UTC
    | M 4.3 |
    543 km (337.4 mi) depth
    |
    639 km (397 mi) distance
    | EMSC | Details
  • 22 Sep 2020 05:53 UTC
    | M 4.8 |
    154 km (95.7 mi) depth
    |
    638 km (396 mi) distance
    | GFZ | Details
  • 21 Sep 2020 17:57 UTC
    | M 4.7 |
    10 km (6.2 mi) depth
    |
    575 km (357 mi) distance
    | USGS | Details
  • 20 Sep 2020 15:21 UTC
    | M 4.5 |
    110.9 km (68.9 mi) depth
    |
    378 km (235 mi) distance
    | USGS | Details
  • 20 Sep 2020 04:53 UTC
    | M 4.5 |
    10 km (6.2 mi) depth
    |
    196 km (122 mi) distance
    | USGS | Details
  • 17 Sep 2020 17:01 UTC
    | M 5.4 |
    12.9 km (8 mi) depth
    |
    214 km (133 mi) distance
    | GeoAu | Details
  • 16 Sep 2020 06:50 UTC
    | M 4.5 |
    431.7 km (268.2 mi) depth
    |
    244 km (151 mi) distance
    | USGS | Details
  • 15 Sep 2020 10:55 UTC
    | M 4.9 |
    10 km (6.2 mi) depth
    |
    388 km (241 mi) distance
    | USGS | Details
  • 15 Sep 2020 04:12 UTC
    | M 6.0 |
    10 km (6.2 mi) depth
    |
    391 km (243 mi) distance
    | GFZ | Strong mag. 6.0 earthquake - Fiji Islands Region on Tuesday, 15 September 2020
  • 14 Sep 2020 23:26 UTC
    | M 4.5 |
    512.6 km (318.5 mi) depth
    |
    284 km (177 mi) distance
    | USGS | Details
  • 14 Sep 2020 19:53 UTC
    | M 4.7 |
    10 km (6.2 mi) depth
    |
    658 km (409 mi) distance
    | USGS | Details
  • 14 Sep 2020 02:12 UTC
    | M 4.6 |
    550.2 km (341.9 mi) depth
    |
    299 km (186 mi) distance
    | USGS | Details
  • 12 Sep 2020 02:38 UTC
    | M 5.0 |
    604.7 km (375.7 mi) depth
    |
    620 km (385 mi) distance
    | GEONET (NZ) | Details
  • 12 Sep 2020 02:37 UTC
    | M 5.5 |
    580 km (360.4 mi) depth
    |
    39 km (24 mi) distance
    | GFZ | Details
  • 09 Sep 2020 22:55 UTC
    | M 5.2 |
    316 km (196.4 mi) depth
    |
    434 km (270 mi) distance
    | GFZ | Details
  • Show all

Map of aftershocks

Significant earthquakes in the same area since 1900

Great mag. 8.1 earthquake - Fiji Islands Region on Sunday, 19 August 2018
 

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