Strong mag. 6.9 earthquake - Banda Sea (Indonesia) on Friday, 21 August 2020 - information

Strong mag. 6.9 earthquake - Banda Sea, 218 km southeast of Katabu, Southeast Sulawesi, Indonesia, on Friday, August 21, 2020 at 04:09 (GMT)

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Strong mag. 6.9 earthquake - Banda Sea, 218 km southeast of Katabu, Southeast Sulawesi, Indonesia, on Friday, August 21, 2020 at 04:09 (GMT)

Strong magnitude 6.9 earthquake at 632 km depth

21 Aug 04:15 UTC: First to report: GFZ after 5 minutes.
Hypocenter depth recalculated from 652.0 to 649.0 km.
Hypocenter depth recalculated from 649.0 to 650.0 km.
Aug 21 04:22: Magnitude recalculated from 6.6 to 6.5.
Hypocenter depth recalculated from 650.0 to 630.0 km.
Aug 21 05:14: Magnitude recalculated from 6.5 to 6.9.
Hypocenter depth recalculated from 630.0 to 632.0 km.
Update Fri, 21 Aug 2020, 13:09
Strong but very deep magnitude 6.9 earthquake beneath Indonesia
A very strong, but also extremely deep (630 km) magnitude 6.9 quake occurred this morning under Indonesia's Banda Sea.
Due to its great depth, it posed no danger on the surface, where it was felt as a very mild shaking over most of Indonesia and adjacent areas including parts of northern Australia.

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Earthquake data

Date & time: Aug 21, 2020 04:09:52 UTC -
Magnitude: 6.9
Depth: 632.0 km
Epicenter latitude / longitude: 6.64°S / 123.49°E (Banda Sea, Indonesia)
Antipode: 6.64°N / 56.51°W
Nearest volcano: Emperor of China (96 km / 60 mi)
Nearby towns and cities:
218 km (136 mi) SSE of Katabu (pop: 42,800) --> See nearby quakes!
261 km (162 mi) NNE of Maumere (pop: 47,600) --> See nearby quakes!
314 km (195 mi) NW of Delhi (Timor-Leste) (pop: 150,000) --> See nearby quakes!
315 km (196 mi) NNW of Atambua (Kabupaten Belu) (pop: 35,800) --> See nearby quakes!
315 km (196 mi) SSE of Kendari (pop: 195,000) --> See nearby quakes!
317 km (197 mi) NE of Ende (pop: 77,200) --> See nearby quakes!
331 km (205 mi) NNW of Kefamenanu (Kabupaten Timor Tengah Utara) (pop: 29,500) --> See nearby quakes!
393 km (244 mi) N of Kupang (pop: 282,400) --> See nearby quakes!
421 km (262 mi) ESE of Watampone (pop: 81,600) --> See nearby quakes!
448 km (278 mi) ENE of Labuan Bajo (pop: 188,700) --> See nearby quakes!
207 km (129 mi) NNW of Pura Island (pop: 5,350) --> See nearby quakes!
341 km (212 mi) NE of Flores Island (pop: 1,831,000) --> See nearby quakes!
369 km (229 mi) NW of Timor Island (pop: 3,182,700) --> See nearby quakes!
Primary data source: GFZ (German Research Centre for Geosciences)
Estimated released energy: 1.4 x 1015 joules (392 gigawatt hours, equivalent to 3.4 x 105 tons of TNT or 21.1 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
6.9632 kmBanda Sea (Indonesia)GFZ
6.9643 kmBanda Sea (Indonesia)EMSC
6.7663 kmBanda Sea (Indonesia)BMKG
6.9627 kmBanda Sea (Indonesia)GeoAu
6.5640 kmIndonesia [Sea]INGV
6.9627 km220 km SSE of Katabu, IndonesiaUSGS

User reports for this quake (37)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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PA USA (15847 km NNE of epicenter) [Map] / Very weak shaking (MMI II) : Went to sleep at 10 p.m.EST. in an upstairs bedroom. I fell deeply asleep after a long day for a few hours, when I felt a very deep but significant shaking that lasted for a short time. In my mind I knew it was a significant earthquake though I didn't rou  
Near Young (3998.4 km SE of epicenter) [Map] / not felt
Kuta, Kabupaten Badung, Bali (947.2 km WSW of epicenter) [Map] / Very weak shaking (MMI II) (reported through our app)
near Ranau, Sabah (1600.2 km NNW of epicenter) [Map] / not felt (reported through our app)
Darwin Australia (1033.8 km SE of epicenter) [Map] / Weak shaking (MMI III) (reported through our app)
Bandar Seri Begawan, Brunei (1599.7 km NW of epicenter) [Map] / Very weak shaking (MMI II)
Brunei, Brunei-Muara District (1599.6 km NW of epicenter) [Map] / Very weak shaking (MMI II)
near Praya, ID.17.Lombok (undefined), West Nusa Tenggara (833.7 km WSW of epicenter) [Map] / Very weak shaking (MMI II) (reported through our app)
Mataram-Lombok, ID.17.Lombok (undefined), West Nusa Tenggara (840.7 km WSW of epicenter) [Map] / Very weak shaking (MMI II) (reported through our app)
Kakas / Weak shaking (MMI III) : I feel from Minahasa, North Sulawesi | 2 users found this interesting.  
Bandung / not felt
Kolkata / not felt
Brunei / not felt
Dili, Timor-Leste / Light shaking (MMI IV)
Dundee Downs Northern Territory / Very weak shaking (MMI II) : Bedroom door rattled and very slight shaking felt in bed  
Darwin / Very weak shaking (MMI II)
Dili / not felt
Kuta, Bali, Indonesia / Light shaking (MMI IV)
sunset road / jl. Dewi sri - Bali / Light shaking (MMI IV)
Darwin Australia / Weak shaking (MMI III)
(Indonesia, 934 km W of epicenter) : Gentle swaying of chair but no shakjng. Less than about 40 seconds | 4 users found this interesting. (reported through EMSC)  
Tindal (Australia, 1303 km SE of epicenter) : Only felt it because I was sitting still. Very mild movement. Tindal NT Australia | 3 users found this interesting. (reported through EMSC)  
Katherine South (Australia, 1289 km SE of epicenter) : Sitting and Still felt vibration like someone beside me farted. There wasn’t a smell and other people felt it but not smelt it, so we put it down to an earth quake. | 2 users found this interesting. (reported through EMSC)  
  • It smelled. Trust me there was a smell.
Dili (Timor Leste, 310 km SE of epicenter) : Boards and fittings swayed...chairs were rocking. Intensity could be around 4. | 2 users found this interesting. (reported through EMSC)  
Dili (Timor Leste, 310 km SE of epicenter) : Was in food court and the whole building shook for about 1 second. | 2 users found this interesting. (reported through EMSC)  
Dili (Timor-Leste, 310 km SE of epicenter) : Those in higher building evacuated down | 2 users found this interesting. (reported through EMSC)  
Kota Kinabalu (Malaysia, 1624 km NW of epicenter) : Felt it when siting siting quietly. How is that possible? I'm from Kota Kinabalu Sabah | One user found this interesting. (reported through EMSC)  
  • The quake was very strong. Thank you for your report
Legian (Indonesia, 945 km W of epicenter) : Kura Bali | One user found this interesting. (reported through EMSC)  
Banjar Medura (Indonesia, 936 km W of epicenter) : Качнуло | One user found this interesting. (reported through EMSC)  
Dili (Timor Leste, 310 km SE of epicenter) : It wasn't very strong, but it lasted a while. (reported through EMSC)  
Dili (Timor Leste, 310 km SE of epicenter) : Felt the chair move, 2 short shakes (reported through EMSC)  
  • It was a very strong earthquake at 6.9
Berrimah (Australia, 1035 km SE of epicenter) : Computers shaking (reported through EMSC)  
Legian (Indonesia, 945 km W of epicenter) : Kuta Bali (reported through EMSC)  
Banjar Medura (Indonesia, 936 km W of epicenter) : Почувствовал (reported through EMSC)  
Sekongkang Bawah (Indonesia, 785 km W of epicenter) : Very mild shake (reported through EMSC)  
(Indonesia, 560 km W of epicenter) : Goyannya pelan tetapi cukup lama (reported through EMSC)  
Dili (Timor-Leste, 309 km SE of epicenter) : Forte e prolongado (reported through EMSC)  
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Aftershocks

[More info]

Recorded aftershocks, latest first (42 quakes)

  • 06 Feb 2021 01:18 UTC
    | M 3.9 |
    23 km (14.3 mi) depth
    |
    37 km (23 mi) distance
    | BMKG | Details
  • 30 Jan 2021 07:48 UTC
    | M 3.9 |
    17 km (10.6 mi) depth
    |
    169 km (105 mi) distance
    | BMKG | Details
  • 26 Jan 2021 16:04 UTC
    | M 3.3 |
    33 km (20.5 mi) depth
    |
    141 km (87 mi) distance
    | BMKG | Details
  • 25 Jan 2021 12:08 UTC
    | M 3.9 |
    421 km (261.6 mi) depth
    |
    121 km (75 mi) distance
    | BMKG | Details
  • 03 Jan 2021 02:08 UTC
    | M 3.7 |
    206 km (128 mi) depth
    |
    118 km (74 mi) distance
    | BMKG | Details
  • 02 Jan 2021 18:34 UTC
    | M 3.9 |
    15 km (9.3 mi) depth
    |
    137 km (85 mi) distance
    | BMKG | Details
  • 04 Dec 2020 05:26 UTC
    | M 4.4 |
    315 km (195.7 mi) depth
    |
    118 km (73 mi) distance
    | BMKG | Details
  • 03 Dec 2020 21:50 UTC
    | M 2.9 |
    231 km (143.5 mi) depth
    |
    170 km (105 mi) distance
    | BMKG | Details
  • 27 Nov 2020 05:49 UTC
    | M 3.8 |
    10 km (6.2 mi) depth
    |
    162 km (101 mi) distance
    | BMKG | Details
  • 18 Nov 2020 19:07 UTC
    | M 4.3 |
    16 km (9.9 mi) depth
    |
    128 km (80 mi) distance
    | BMKG | Details
  • 08 Nov 2020 21:42 UTC
    | M 4.4 |
    10 km (6.2 mi) depth
    |
    130 km (81 mi) distance
    | BMKG | Details
  • 08 Nov 2020 21:23 UTC
    | M 3.6 |
    21 km (13 mi) depth
    |
    125 km (77 mi) distance
    | BMKG | Details
  • 05 Nov 2020 17:21 UTC
    | M 4.3 |
    589 km (366 mi) depth
    |
    85 km (53 mi) distance
    | BMKG | Details
  • 03 Nov 2020 22:51 UTC
    | M 4.4 |
    10 km (6.2 mi) depth
    |
    114 km (71 mi) distance
    | BMKG | Details
  • 03 Nov 2020 22:51 UTC
    | M 3.4 |
    10 km (6.2 mi) depth
    |
    118 km (74 mi) distance
    | BMKG | Details
  • 03 Nov 2020 22:00 UTC
    | M 3.3 |
    17 km (10.6 mi) depth
    |
    125 km (77 mi) distance
    | BMKG | Details
  • Show all

Earlier earthquakes in the same area

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